Solve each equation by factoring.
Solve using square roots.
Solve each equation with completing the square
100

p2 + -2p - 10 = 5

5, -3

100

4x2 + 25 = 125

x= 5 or x = -5

100

x2 - 8x - 20 = 0

-2, 10

200

3n2 + 13n = -4

n = -4 or n = -1/3

200

(4x + 1)2 - 16 = 0

x = 3/4 or x = -5/4

200

b2 − 4 = 0

b = 2 or b = -2

300

7r2 + 84 = -49r

-4, -3

300

34 = (a - 2)2 - 2

a = 8 or a = -4

300

16 - 4a2 = 0

a = 2 or a = -2

400

3v2 + 7v = 40

8/3, -5

400

0 = 3(x + 7)2 - 24

x = -7 + 2 square root of 2

or

x = -7 - 2 square root of 2

400

2x - 3+ x2 = 0

1, -3

500

2x2+13x+15 = 0

x = -5 or x = -3/2

500

x2+24x-6=0

x=-12±5√7

500

m2 − 10m  = -5

5 + 2 square root 5, 5 - 2 sq root 5

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