Add, Subtract, Multiply Monomials

Simplify the expression: 2x + 1 + 7x 

• 10x
• 10
• 9x + 1
• 9 + 1x

Add; 
12ab + 3ab + 9ab

• 24ab
• 24a³b³

When adding or subtracting monomials, what happens to the exponents?

• You add or subtract them from each other.

• The exponents stay the same.

Which is equivalent to

7 x 7 x 7 x 7 x 7 x 7 ?

• 7⁵

• 7⁶

• 6⁷

• 7⁷

Simplify the expression:

3x² - x + 7 + 5x + 2 - 2x²

• x² + 4x + 9

• 5x² + 9

• 15

• 15x

Simplify the Expression:

3x²y + 4x - 6y + 4x²y -2y

• 11x²y - 8y

• 3y

• 7x²y - 4y

• 7x²y + 4x - 8y

Simplify the Expression:

7x² - 3a +20 - 4x² + 2a

• 11x² - a + 20

• 3x² - a + 20

• 2a + 20

• 3x² - a

Simplify the Expression:

9xy + 3x - 6xy + 2x

• 3xy + 5x

• 8xy

• 8x

• 15xy + 5x