Simplifying Polynomials

5(2k² + 3k - 9)

• 10k² + 15k - 45

• 10k² + 15k -14

• 10k² - 15k + 45

• 10k² + 15 - 45k

Simplify:
3a(5a² + 8a + 2)

• 15a³ + 24a² + 6a

• 10a³ + 24a + 6

• 8a³ + 11a² + 6a

• 15a³ + 24a + 6

Simplify the expression: 3x + 2x

• 5x

• x

• 6x

• 5

Combine like terms to simplify:
 (5x + 2) + (4x + 5)

• 9x -7

• -9x-11

• 9x+7

• x+7

• 10x⁹
• 24x¹⁴
• 24x⁹
• 10x¹⁴

Simplify.

(x²y)(4xy³)

• 4x³y⁴

• 5x³y⁴

• 4x²y³

• x²y⁵

Simplify.

(-4x³)(-5x⁷)

• -9x¹⁰

• 20x¹⁰

• -20x¹⁰

• 20x²¹

Simplify:

5(3x+2)

• 3x+10

• 15x+10

• 15x-10

• 3x-10

Simplify by combining like terms:
5a + 2b - 3a + 4

• 8a + 2b + 4

• 2a + 2b + 4

• 8ab

• 4ab + 4

Find the sum.
(2x² + 5x - 7) + ( 3 - 4x² + 6x)

• 2x² + 3x +1

• -2x² - 11x -4

• 2x² + 5x -7

• -2x² + 11x -4