Grade 9 Algebra. (Canada)

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| Written by Robertmclellan03

Robertmclellan03

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Quizzes Created: 1 | Total Attempts: 1,261

Questions: 5 | Attempts: 1,261 | Updated: Mar 21, 2022

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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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1
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.

Grade 9 Algebra. (Canada)

Subtract the following trinomes:(2y+3zx-4)-(5zx+3-6y)

Developpe the follweing equation:3(z-7+6y)

Multiply the following:(-2jrl)(-3yuh)(-4asd)

Developp the following, then simplify:(x+10)(x+2)

Write a short, one paragraph essay on how to factorise polynomes with using simple trinome.