BENCHMARK REVIEW

Simpliy: 3x²+5x²

• 8x
• 2x²
• 8x²
• 2x

-x³(9x⁴ - 2x³ + 7)

• -9x¹² + 2x⁹ - 7x³
• 9x⁷ - 2x⁶ + 7x³
• -9x⁷ - 2x³ + 7
• -9x⁷ + 2x⁶ - 7x³

Identify the degree of the monomial:
8a³

• 8
• 1
• 3
• 11

5x²(2x - 3)

• 5x² + 2x - 3
• 10x³ - 15x²
• -5x2
• 7x³ - 15x²

Solve the equation for x:  $10-5x=3\left(x-4\right)-2\left(x+7\right)$  

•  $x=6$  

•  $x=2$  

•  $x=-3$  

•  $x=4$  

Solve for b:      $\frac{4b+8}{-2}=10$   

• 3

• -7

• 7

• -3

What step would you take to solve this equation?

• Multiply both sides of the equation by 2
• Divide both sides of the equation by 2
• Add 2 to both sides of the equation
• Subtract 2 from both sides of the equation

Solve for y: 8x + 4y= 16

• y = -8x + 16

• y = 2x -4

• y = -2x + 4

• y = -8x + 12

Which of the following equations is equivalent to $9x-7y=-7$ 

•  $y=-\frac{9}{7}x-7$  

•  $y=\frac{9}{7}x+1$  

•  $y=\frac{7}{9}x+1$  

•  $y=-\frac{9}{7}x+1$  

Which of the following is equivalent to $y+6=\frac{3}{4}\left(x+16\right)$  

•  $y=-\frac{4}{3}x+6$  

•  $y=\frac{4}{3}x+6$  

•  $y=-\frac{3}{4}x+6$  

•  $y=\frac{3}{4}x+6$