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This quiz will test you if you really know algebra
Questions and Answers
1.
Subtract the following trinomes:(2y+3zx-4)-(5zx+3-6y)
A.
8y-2zx+1
B.
5y+4-4zx
C.
-y
D.
2zx-5+16y
Correct Answer A. 8y-2zx+1
Explanation The given expression is a subtraction of two trinomials. To subtract them, we need to distribute the negative sign to the second trinomial and then combine like terms. By doing so, we get 2y + 3zx - 4 - 5zx - 3 + 6y. Combining like terms, we have 8y - 2zx + 1, which matches the given answer.
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2.
Developpe the follweing equation:3(z-7+6y)
A.
21-18z+7
B.
-z+18y
C.
3z-21+18y
D.
3-7+z
E.
-18y-z-7
Correct Answer C. 3z-21+18y
Explanation The given equation is developed by distributing the 3 to each term inside the parentheses. This results in 3z - 21 + 18y, which is the correct answer.
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3.
Multiply the following:(-2jrl)(-3yuh)(-4asd)
A.
-24jrlyuhasd
B.
24jrlyuhasd
C.
-24jya
D.
Jrlyuhasd
Correct Answer A. -24jrlyuhasd
Explanation The given expression involves multiplying three terms: (-2jrl), (-3yuh), and (-4asd). When multiplying three negative numbers, the result is positive. Therefore, the correct answer is 24jrlyuhasd, without the negative sign.
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4.
Developp the following, then simplify:(x+10)(x+2)
A.
X2+5
B.
X+20
C.
2x+10-2
D.
X2+12x+20
Correct Answer D. X2+12x+20
Explanation The given expression is a product of two binomials. To simplify it, we can use the distributive property. Multiplying the first terms of each binomial gives x^2. Multiplying the outer terms gives 2x, and multiplying the inner terms gives 10x. Finally, multiplying the last terms gives 20. Combining like terms, we have x^2 + 12x + 20, which is the simplified form of the expression.
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5.
Write a short, one paragraph essay on how to factorise polynomes with using simple trinome.