Quiz 7-3 corrections

1. 1.Factor 18w² - 27w

• w(18w-27)

• 9w(2w-3)

• (9w-3)(9w-3)

• (w-9)(w+3)

2.Factor 25x²-121

• 25(x²-121)

• (x+5)(x-11)

• (5x+11)(5x-11)

• (5x-11)(5x-11)

3.Factor n³-n²-42n completely

• n(n+6)(n-7)

• n(n²-n-42)

• (n+6)(n-7)

• n(n+7)(n-6)

4.factor 5v²-30v+40 completely

• (v-2)(v-4)

• (v-10)(v-20)

• 5(v²-6v+8)

• 5(v-2)(v-4)

• 5(v+2)(v+4)

5.factor x³+3x²+8x+24 completely

• (x²+8)(x+3)

• x²(x+3)8(x+3)

• (x+4)(x-4)(x+3)

• x²(x+3)

6.factor a³b²-a completely

• (ab-1)(ab+1)

• (ab+a)(ab-a)

• a(a²b²-1)

• a(ab+1)(ab-1)

• prime

7.factor 10x²+13x-3 completely

• (2x+3)(5x-1)

• (x+15)(x-2)

• 10(x+13)(x-3)

• (x+1)(3x+10)

• (x-1)(3x-10)

8.factor x²-5x+6

• (x+1)(x+6)

• (x-1)(x-6)

• (x+2)(x-3)

• (x-2)(x-3)

• (x+2)(x+3)

9.factor 24a³b²+56a²b-16a

• a(24b²+56b-16)

• 4a(6a²b²+14ab-4)

• 8(3a³b²+7a²b-2a)

• 8a(3a²b²+7ab-2)

• 8a(ab+1)(ab+6)

10.factor x³-3x²y-x+3y completely

• (x²-1)(x-3y)

• x²(x-3y)

• (x+3y)(x-3y)

• x(x²-3xy)(-x+3y)

• (x+1)(x-1)(x-3y)