OAR OAR Math Skills: Algebraic Expressions 5

Question 1

What is the coefficient of x² in the expression 7 - 3x² + 4x?

Accepted Answer

-3

Answer

4

Answer

7

Answer

3

Question 2

Simplify: (2x²y)(3xy³)

Accepted Answer

6x³y⁴

Answer

6x³y³

Answer

5x³y⁴

Answer

6x²y⁴

Question 3

Which expression equals zero when x = 3?

Accepted Answer

x² - 2x - 3

Answer

x² + 2x + 3

Answer

x² - 9x

Answer

x + 3

Question 4

Translate to an algebraic expression: 'the product of 4 and a number x, decreased by 9'

Accepted Answer

4x - 9

Answer

4 + x - 9

Answer

9 - 4x

Answer

4(x - 9)

Question 5

Simplify: x⁰ + 3x¹ - 2

Accepted Answer

3x - 1

Answer

3x + 1

Answer

3x - 2

Answer

3x

Question 6

What is the sum of 4x² - 3x + 1 and 2x² + 5x - 4?

Accepted Answer

6x² + 2x - 3

Answer

6x² - 2x - 3

Answer

6x² + 2x + 5

Answer

2x² + 2x - 3

Question 7

If 2(x + 4) = 3(x - 1), what is x?

Accepted Answer

11

Answer

5

Answer

7

Answer

3