OAR OAR Math Skills: Algebraic Expressions Questions and Answers 3

Question 1

Expand and simplify: (2x + 3)(x - 7)

Accepted Answer

2x² - 11x - 21

Answer

2x² - 4x - 21

Answer

2x² - 11x + 21

Answer

2x² + 11x - 21

Question 2

Simplify the rational expression: (x² - 16)/(x + 4)

Accepted Answer

x - 4

Answer

x + 4

Answer

x² - 4

Answer

x - 16

Question 3

If 3(x - 2) = 2(x + 5), what is the value of x?

Accepted Answer

16

Answer

6

Answer

8

Answer

4

Question 4

Which expression represents the product of (a - b)² ?

Accepted Answer

a² - 2ab + b²

Answer

a² - b²

Answer

a² + 2ab + b²

Answer

a² - ab + b²

Question 5

Combine like terms: 7m²n - 3mn² + 2m²n + 5mn²

Accepted Answer

9m²n + 2mn²

Answer

5m²n + 8mn²

Answer

9m²n - 8mn²

Answer

5m²n + 2mn²

Question 6

Factor out the greatest common factor from 12x³y² - 8x²y³ + 4x²y²

Accepted Answer

4x²y²(3x - 2y + 1)

Answer

4xy(3x²y - 2xy² + xy)

Answer

2x²y²(6x - 4y + 2)

Answer

4x²y²(3x - 2y)