Unit 1 Review

Find the sum. 
(3 - 2x + 2x²) + (4x - 5 + 3x²)

• 7x - 7x + 5x²
• 5x² + 2x - 2
• 5x²
• 5x² + 6x + 8

Simplify
(3x² +2x -1) - 2(x+4)

• 3x² - 9
• 3x² - 4x - 9
• 3x²+ 4x - 9
• 3x²+ 3x + 1

Tags

CCSS.6.EE.A.3

Find the difference.
(7p + 4p³ - 8) - (-3p² + 2 - 9p)

• -3p² + 4p³ -15 + 9
• 3p³ + 4p² - p + 3
• 4p³ -3p² +16p -10
• 4p³ +3p² + 16p + 10

Evaluate the expressions for x=-4, in simplest form.

• 1/7

• -7/3

• 7/3

• -1/3

Solve.
(2x - 3) / 4  = 9

• x = 24
• x = 12
• x = 17.5
• x = 19.5

Tags

CCSS.7.EE.B.4A

Solve the equation: 3(2x+5)+x=11x+12-4x

• identity

• inconsistent

• x=-3

For which value of k will the equation 2(5x-1)+kx=6x-2+7x be an identity?

• k=13

• k=-2

• k=3

• k=-3

Which of the following would have no values of x in the solution set?

• 2x+5=7+2x

• 3(x+8)=3x+24

• 2(x+9)=18+5x-3x

• 3(2x+1)-7=6x-4

The product of (3x²)(-2x³)² is

• -6x⁷

• -6x⁸

• 12x⁸

• 12x⁷

Which value of x is a zero of the expression x²+11x+18?

• x=2

• x=9

• x=18

• x=-2