Lesson: 4.5 - 4.7 (Review)

Lesson: 4.5 - 4.7 (Review)

Multiple Choice

Simplify:

• 9a⁶

• 9a⁵

• 64a⁶

• 6a⁵

Multiple Choice

Simplify. Write using a positive exponent.
 $\frac{12x^6y^{-2}}{2x^{-2}y}$  

•  $6x^4y^{-3}$  

•  $\frac{6x^8}{y^3}$  

•  $\frac{6x^4}{y^3}$  

•  $\frac{10x^4}{y^3}$  

Multiple Choice

(5x⁴ - 4x³ - 2x² + x - 19) - (x⁴ + 5x³ + 8x² + x + 5)

• 4x⁴ - 9x³ - 10x² - 24

• 4x⁴ - 9x³ - 10x² - 2x - 24

• 4x⁴ - 9x³ - 10x² + 2x - 24

• -4x⁴ - 9x³ - 10x² - 24

Multiple Choice

Find the sum.

(2x² + 5x - 7) + ( 3 - 4x² + 6x)

• 2x² + 3x +1

• -2x² - 11x -4

• 2x²+ 5x -7

• -2x² + 11x -4

Multiple Choice

(7r-6)(7r+6)

• 49r²+36

• 49r²-36

• 49r²+84r+36

• 49r²+42r+36

Multiple Choice

(x+4)²

• x²+16

• x²-16

• x²+8x+16

• x²+8x-16