Factoring Matching

Factor: k²+7x+10

• (k+2)(k+5)

• (k-2)(k-5)

• (k+10)(k+4)

• (k+2)(k-5)

x² + 9x - 36

• (x + 12)(x - 3)

• (x + 9)(x - 4)

• (x - 12)(x + 3)

• (x - 9)(x - 4)

x² - 49

• (x + 7)(x - 7)

• (x + 7)²

• (x - 7)²

• (x+7)(x-1)

Factor completely

18x²-2

• 2(9x²-1)

• (3x+1)(6x-2)

• 2(3x+1)(3x-1)

• not factorable

Factor completely

81c²+198c+121

• (9c-11)(9c-11)

• (27c+11)(3c+11)

• (9c+11)²

• not factorable

Factor completely

x²+5x+4

• (x+2)(x+2)

• (x-4)(x-1)

• (x+4)(x+1)

• not factorable

Factor completely.

8x²+18x+9

• (4x+3)(2x+3)

• (8x+3)(x+3)

• (8x+9)(x+1)

• not factorable

Factor completely.

p²-5p-6

• (p-2)(p-3)

• (p+1)(p-6)

• (p+6)(p-1)

• not factorable

Factor completely

r²-14r-72

• (r-18)(r+4)

• (r-4)(r+18)

• (r-24)(r+3)

• (r-4)(r+18)

What kind of factoring technique(s) could you use to factor x²-25? (select all that apply)

• GCF

• Factor by difference of squares

• Factor trinomial

• not factorable