Practice Polynomials and Factoring

Simplify:

-3x²(5x² + 3x)

• -15x⁴ - 9x²

• -15x⁴ - 9x³

• 2x⁴ - 6x³

Factor 15a^2b-30ab

• 15ab(a + 2)

• 15ab(a - 2)

• 5ab(3a - 10)

• 5ab(3a + 10)

If a = 4x and b = 5, write a SUM of Cubes Problem that would need to then be factored.

Mathematical Equivalence

ON

Factor 4x² - 9

• (x - 15)(x - 3)

• (x + 15)(x + 3)

• (x - 15)(x + 3)

• (x + 15)(x - 3)

Rewrite in Standard Form:

• 125 + 7x - 14x² +6x⁴

• 6x⁴  -14x² - 7x +125

• 125 + 14x² + 7x  - 6x⁴

• -6x⁴+ 14x² + 7x - 125

(4n⁴ - 8n + 4) - (8n² + 4n⁴ + 1)

• -8n² - 8n + 3 

• -7n² - 8n + 3 

• -6n² - 8n + 3

• -7n² - 4n + 3

Factor: 3x² + 3x −18

• 3(x² + x − 6)

• (3x + 6)(x − 3)

• 3(x + 2)(x − 3)

• 3(x − 2)(x + 3)