Algebra Quiz: Multiplication & Division Of Polynomials
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What is the product of -3x and -6x?
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-18x2
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18x
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18x2
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-18x
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- 2.
What is the result in multiplying (-2x) to (4x2 + 3x - 3)?
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8x3 – 6x2 + 6x
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-8x3 – 6x2 + 6x
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-8x3 + 6x2 - 6x
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8x3 + 6x2 – 6x
Correct Answer
A. -8x3 – 6x2 + 6xExplanation
When multiplying (-2x) to (4x^2 + 3x - 3), we can use the distributive property. We multiply -2x by each term inside the parentheses.
-2x * 4x^2 = -8x^3
-2x * 3x = -6x^2
-2x * -3 = 6x
Combining these terms, we get -8x^3 - 6x^2 + 6x. Therefore, the answer is -8x^3 - 6x^2 + 6x.Rate this question:
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- 3.
Find the product of (2n – 4) and (3n2 - 6n + 4).
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6n3 – 24n2 + 32n – 16
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6n3 + 24n2 – 32n – 16
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6n3 – 24n2 – 32n + 16
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6n3 + 24n2 + 32n + 16
Correct Answer
A. 6n3 – 24n2 + 32n – 16Explanation
The given expression is a product of two binomials. To find the product, we can use the distributive property.
(2n - 4) * (3n^2 - 6n + 4) = 2n * (3n^2 - 6n + 4) - 4 * (3n^2 - 6n + 4)
Simplifying further, we get: 6n^3 - 12n^2 + 8n - 12n^2 + 24n - 16
Combining like terms, we have: 6n^3 - 24n^2 + 32n - 16
Therefore, the correct answer is 6n^3 – 24n^2 + 32n – 16.Rate this question:
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- 4.
The length of the rectangle is 5m + 4 and the width is m - 9. What is the area of the rectangle?
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5m2 – 41m – 36
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5m2 + 41m – 36
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5m2 – 41m + 36
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5m2 + 41m + 36
Correct Answer
A. 5m2 – 41m – 36Explanation
The area of a rectangle is calculated by multiplying its length by its width. In this case, the length of the rectangle is given as 5m + 4 and the width is given as m - 9. Therefore, the area of the rectangle can be found by multiplying (5m + 4) by (m - 9). Simplifying this expression gives us 5m^2 - 41m - 36, which matches the given correct answer.Rate this question:
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- 5.
What is the area of a square if its side measures 9x - 4?
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81x2 + 72x + 16
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81x2 – 72x – 16
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81x2 + 72x – 16
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81x2 – 72x + 16
Correct Answer
A. 81x2 – 72x + 16Explanation
The given expression represents the area of the square. The side of the square is given as 9x - 4. To find the area of a square, we square the length of one side. So, we square (9x - 4) which gives us 81x^2 - 72x + 16. Therefore, the correct answer is 81x^2 - 72x + 16.Rate this question:
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- 6.
If Anna would evaluate this expression, a7/a2 using the quotient rule, the what is the result?.
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A-9
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A-5
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A5
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A9
Correct Answer
A. A5Explanation
When evaluating the expression a7/a2 using the quotient rule, we divide the exponent of the numerator (7) by the exponent of the denominator (2). This gives us a result of a5, as the quotient rule states that when dividing variables with the same base, we subtract the exponents. Therefore, the correct answer is a5.Rate this question:
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- 7.
What is the quotient of 27z5 divided by 26z3?
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213z8
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27/z2
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Z/28
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2z2
Correct Answer
A. 2z2Explanation
The correct answer is 2z2 because when you divide 27z5 by 26z3, you divide the coefficients (27/26) and subtract the exponents of the variables (5-3). This results in a quotient of 2z2.Rate this question:
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- 8.
If you divide 10x6 + 5x4 + 15x3 by 5x3, the result is .
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2x3 - x + 3
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2x3 + x + 3
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2x3 - x – 3
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2x3 + x – 3
Correct Answer
A. 2x3 + x + 3Explanation
When dividing 10x6 + 5x4 + 15x3 by 5x3, we can simplify the expression by dividing each term by 5x3. The first term, 10x6, divided by 5x3 is 2x3. The second term, 5x4, divided by 5x3 is x. The third term, 15x3, divided by 5x3 is 3. Therefore, the result of the division is 2x3 + x + 3.Rate this question:
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- 9.
Find the quotient of x3 + 5x2 + 2x – 8 divided by x + 2.
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X2 + 3x – 4
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X2 – 3x – 4
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X2 + 3x + 4
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X2 – 3x – 4
Correct Answer
A. X2 + 3x – 4Explanation
The quotient of x3 + 5x2 + 2x – 8 divided by x + 2 is x2 + 3x – 4. This can be determined by performing polynomial long division.Rate this question:
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- 10.
What is the result if x3 – 5x2 + x + 15 will be divided by x – 3?
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X2 – 2x + 5
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X2 + 2x + 5
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X2 – 2x – 5
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X2 + 2x – 5
Correct Answer
A. X2 – 2x – 5Explanation
When we divide x^3 - 5x^2 + x + 15 by x - 3 using long division, we get x^2 - 2x - 5 as the quotient. This means that x^2 - 2x - 5 is the result of the division.Rate this question:
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Mar 22, 2023Quiz Edited by
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Mar 20, 2021Quiz Created by
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