INT 3 3.2 Review

Solving by Substitution 1

200

y=6x-11

-2x-3y=-7

(2,1)

x=2, y=1

300

-3x-3y=3

y=-5x-17

(-4,3)

x=-4, y=3

400

y=5x-7

-3x-2y=-12

(2,3)

x=2, y=3

500

-5x+y=-3

3x-8y=24

(0,-3)

x=0, y=-3

Factoring Quadratics 1

100

Factor the quadratic: x²+5x+6

(x+2)(x+3)

200

Factor the quadratic: x²+8x+7

(x+7)(x+1)

300

Factor the quadratic: x²+4x-12

(x-2)(x+6)

400

Factor the quadratic: x²+2x-24

(x+6)(x-4)

500

Factor the quadratic: x²-x-56

(x+7)(x-8)

Solving by Substitution 2

100

2x+y=20

6x-5y=12

(7,6)

x=7, y=6

200

6x+6y=-6

5x+y=-13

(-3,2)

x=-3, y=2

300

-3x-4y=2

3x+3y=-3

(-2,1)

x=-2, y=1

400

-3x-4y=2

3x+3y=-3

(-2,1)

x=-2, y=1

500

x+3y=1

-3x-3y=-15

(7, -2)

Factoring Quadratics 2

100

Factor the quadratic: x²-5x+6

(x-2)(x-3)

200

Factor the quadratic: x²-13x+40

(x-5)(x-8)

300

Factor the quadratic: x²+16x+64

(x+8)(x+8)

OR

(x+8)²

400

Factor the quadratic: x²+6x+8

(x+2)(x+4)

500

Factor the quadratic: x²-15x+50

(x-10)(x-5)

GCF

100

Find the GCF of 18 and 24

6

200

Find the GCF of 14 and 49

7

300

Find the GCF of 36 and 45

9

400

Find the GCF of 60 and 72

12

500

Find the GCF of 105 and 45

15