Unit 1 Review

Which of the following is the value of 2x²+1 when x = -2?

• -7

• 17

• -15

• 9

Which shows the associative property of addition?

• (2+8) + (1+9) = (8+2) + (9+1)

• 5(2 +7) = 10 + 35

• 5 + 2(3 +4) = 5 + 6 + 8

• (3 +7) + 2 = 3 + (7 + 2)

Which is equivalent to 10x - 35?

• 5(2x - 7)

• x(10 - 35)

• 10(x - 5)

• 10(x - 35)

The product of the binomials (3x +2) and (2x - 1) is equivalent to which of the following expressions?

• 5x + 1

• 6x - 3

• 6x² + x - 2

• 6x² - 2

Which of the following is equivalent to the expression

 $\frac{8x\ +\ 30}{10}$  ?

• 8x + 3

•  $\frac{4}{5}x\ +\ 3$  

• 8x + 20

•  $\frac{4}{5}x\ +\ 30$  

When 3(2x - 5) is added to 2(4 - x) the result is?

• 8x + 2

• 5x + 3

• 4x - 7

• 2x - 11

If the expression 4x - 3 is equal to 11 for some value of x, then what is the expression 4x -1 equal to for the same value of x?

• -15

• 13

• 9

• -11

Written in simplest exponential form the product (3x⁷)(-2x³) is ?

• -5x²

• -6x¹⁰

• x⁴

• -6x²¹

Which is equivalent to (x + 5)² ?

• x² + 10x + 25

• x² + 25

• 2x + 25

• 2x + 10

Which product of two binomials are equivalent to

(x+3)(4x-1) - (x+3)(x-9)?

• (2x + 6)(3x - 10)

• (x + 3)(x - 10)

• (x + 3)(3x + 8)

• (2x + 6)(3x + 8)