Units 1-12 review

 $Simplify:\ \left(8x^3\right)\left(-7x^4y^3\right)$  

•  $\frac{x^{12}y^3}{-56}$  

•  $\frac{x^7y^3}{-56}$  

•  $-56x^7y^3$  

•  $-56x^{12}y^3$  

Simplify .

• 2x⁶y¹²

• 2x⁵y⁷

• 8x⁶y¹²

• 8x⁵y⁷

Write the above expression in exponential form.

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Which TWO are equivalent to the above expression?

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Simplify the following expression:

• 5
• 25
• 125
• 625

 $64^{-\frac{1}{3}}$  Simplify

• 8

• 1/4

• 4

• -1/4

3) What is the Degree of the polynomial

 $5a^4+7a^2-3a^9+10$  

• 2

• 4

• 9

• 10

Find the sum.
(3y² + y³ - 5) + (4y² -4y + 2y³ + 8)

• 3y³ + 7y² - 4y + 3
• 4y² + 3y³ - y + 3
• -y⁴ + 2y³ -y - 4
• 4y³ + 3y² -3y + 1

Subtract:
(3x² - 3x + 2) - (-3x² + 2x - 1)

• A
  0x² - x + 1
• B
  6x² - x + 1
• C
  6x² - 5x + 3
• D
  6x² + 5x + 3