Math9-A Ch8/9 Test Review

Multiplying Polynomials

100

3(2x+5)

6x+15

200

4x(2x-9)

8x²-36x

300

(x+4)(x+3)

x²+7x+12

400

(2x+5)²

4x²+20x+25

500

(2x+3)(x-8)-(x+1)(2x-5)

-10x-19

Common Factoring

100

5x+10

5(x+2)

200

3x²-9x

3x(x-3)

300

4xy³+12x²y²+10x³y⁴

2xy²(2y+6x+5x²y²)

400

2x(x-1)+4(x-1)

(2x+4)(x-1)

500

x²+3x+2x+6

(x+2)(x+3)

Factoring quadratics (a=1)

100

x²+7x+10

(x+2)(x+5)

200

x²+7x-18

(x+9)(x-2)

300

x²+4x-12

(x+6)(x-2)

400

2x²-24x+54

2(x-3)(x-9)

500

x²-25

(x+5)(x-5)

Factoring quadratics (a>1)

100

2x²+7x+5

(2x+5)(x+1)

200

3x²-2x-8

(3x+4)(x-2)

300

6x²+7x+2

(2x+1)(3x+2)

400

8x²+6x-9

(4x-3)(2x+3)

500

10x²-21x-10

(2x-5)(5x+2)

Solving quadratics

100

x²+7x+10=0

x=-2 or x=-5

200

x²+4x-12=0

x=2 or x=-6

300

3x²-2x-8=0

x=2 or x=-4/3

400

10x²-16x=-6

x=1 or x=3/5

500

(x-6)²-8x=0

x=2 or x=18