Combining Like Terms Exponents

y⁴ x y⁸

• y¹²

• y⁵

• y⁸

• y¹⁰

3x²+4x²+7 is

• 7x⁴+7

• 7x² + 7

• 7x⁵

• 7

5x²y - 3xy² + 6x²y - 3xy²

• 11x²y - 6xy²

• -3x²y - 3xy²

• -x²y - 6xy²

• 11x²y - 3xy²

(-7a⁴ + 1 - 3a³) - (-6a⁴ - 7a² - 3a³)

• -a⁴ - 7a² + 1

• -a⁴ + 7a² + 1

• -a⁴ + 3a² + 1

• -7a⁴ + 7a² + 1

x² + 2 − 1 + 6x² − 4x²

• x ²  -1

• x² +1

• 3x² +1

• x ²+3

Which of the following are examples of like terms?

• 2 and 2x

• y³ and x³

• y and x

• -3x and 3x

Add the polynomials.
(3x³ + 3x² – 4x + 5) + (x³ – 2x² + x – 4)

• 4x³ + 1x² – 3x + 1

• 2x³ + 1x² - 5x + 9

• 6x³ + 1x - 1x² - 3

• 3x⁵ +1x - 1x⁵ - 3x

Simplify each expression. 
(6x + 4x⁴ - 3x²) + (7x⁴ + 5x² + 8x)

• 11x⁴  + 2x² + 14x

• 16x⁴  + x² + 14x

• 11x⁴  + x² + 14x

• 11x⁴  + 2x² + 10x

Simplify each expression.
(6b³ + 6 - b⁴) - (8b³ - 6b⁴ + 2)

• 4b⁴ - 2b³ + 7

• 5b⁴ - 2b³ + 4

• b⁴ - 2b³ + 7

• 5b⁴ - 2b³ + 7

Choose the correct answer.

• A

• B

• C

• D