Factoring by Grouping

What is the factored form of x³+7x²-2x-14

• (x²-2)(x-7)

• (x²+2)(x-7)

• (x²+2)(x+7)

• (x²-2)(x+7)

What is the factored form of 6d⁴+9d³-12d²

• 3d²(2d²+3d-4)

• 3d²(3d²+6d-9)

• 3d²(d³+3d²-4)

• 6d²(d²+3d³-6)

Factor: 4b³ + b² + 8b + 2

• (b + 2)(4b + 1)

• (b² + 2)(4b + 1)

• (b + 2)(b + 1)

• (b³ + 2)(4b + 1)

Which is a factor of 12r² + 20r + 15r + 25? (hint: there's more than one answer!)

• 3r + 5

• r + 5

• 4r + 5

• 4r² + 5

Factor: 70n⁴ + 40n³ + 28n² + 16n

• (10n + 4)(7n + 4)

• 2n (35n³ + 20n² + 14n + 8)

• (10n³+ 4n)(7n + 4)

• (2n³+ 4n)(7n + 4)

Factor: 30x²+15x + 18x + 9

• (5x² - 3)(6x + 1)

• (5x + 9)(2x + 1)

• 3(5x²+3)(2x-1)

• (15x + 9)(2x + 1)

Factor: 6x² + 9xy + 14x + 21y

• (3x + 7)(2x + 3y)

• (3x + 7)(x + y)

• (3x² + 7)(2x + 3y)

• (3x + 7)(2x + 3)