Alg 1. Day 3 Solving Square Equations. Class practice

Solve:

x² = 324

• x = ± 18

• x = ± 14

• x = ± 16

• x = ± 22

Solve:

289x² = 49

• x = ± 7/17

• x = ± 17/7

• x = ± 49/289

• x = ± 7/27

• x = ± 27/7

Solve:

6x² = 150

• x = ± 5

• x = ± 1/5

• x = ± 25

• x = ± 125

• x = ± 150

Solve:

2x² - 490 = -40

• x = ± 15

• x = ± 40/265

• x = ± 225

• x = ± 8/53

• x = ± 53/8

Solve

(x - 7)² = 169

• x = 20 or x = -6

• x = -20 or x = 6

• x = 176 or x = -162

• No solution

• x = ± 13/7

Solve

(x + 9)² = 81

• x = 18 or x=0

• x = -18 or x =0

• x = 72 or x = -80

• x=3 or 9

• x = ± 9

Solve

(x + 10)² = 25

• x = 15 or x=5

• x =-15 or x =-5

• x =15 or x =35

• x=5 or 2

• x = ± 5

Solve

(x - 27)² = 529

• x = 15 or x=5

• x =556 or x =-502

• x =50 or x =4

• x=50 or -4

• x = ± 5

Solve:

8(y - 4) = 800

• y = 104 or -96

• y = 14 or -6

• y =804 or -796

• y = -14 or 6

Solve:

-5(y + 2) = -180

• y = 8 or -6

• y = 4 or -8

• y =34 or -38

• y = -14 or 6