Exponents

Simplify the following expression: 2c³ + 8c³

• 10c⁶

• 10c⁹

• 10c³

• 10 + c³

-20x⁶ + (-10x⁶)

• 10x¹²

• -30x⁶

• -10x⁶

• -30x¹²

Simplify the following monomial:  $-5a^2b^{2\ }-\ a^2b^2$  

•  $-6a^2b^2$  

•  $-4a^2b^2$  

•  $6a^2b^2$  

•  $6a^2b^2$  

2x² + 3y - 2x + 5y + 2x

• 2x² + 8y

• 2x + 8y

• 2x + 5y

• 2x² + 4x + 8y

10m²n + 7mn² - m²n

• 9m²n + 7mn²

• 16m²n

• 17m²n - mn²

• No change

Simplify the following monomial: $16x^2y-4xy^2-5x^2y+10xy^2$  

•  $6xy^2+21x^2y$  

•  $11x^2y\ +6xy^2$  

•  $6x^2y+11xy^2$  

Subtract 9a from -15a.

• -6a

• -24a

• 24a

• 6a

In order to multiply powers with the same base, we add their exponents. 

• True 
• False

n²⋅n⁴

• n²

• n⁸

• n⁶

• n²⁴

Simplify the expression: 3x²⋅5x²=

• 15x

• 8x⁴

• 15x⁴

• 8x