Question
x 2 + 6 x + 9 = 0

Answer x = − 3 , x = − 3

Question
x 2 + 8 x + 15 = 0

Answer x = − 5 , x = − 3

Question
x 2 + 12 x + 32 = 0

Answer x = − 4 , x = − 8

Question
x 2 + 14 x + 48 = 0

Answer x = − 8 , x = − 6

Question
x 2 − 11 x + 30 = 0

Answer x = 6 , x = 5

Question
x 2 + 5 x − 14 = 0

Answer x = − 7 , x = 2

Question
x 2 + 8 x − 20 = 0

Answer x = − 10 , x = 2

Question
x 2 + 5 x − 36 = 0

Answer x = − 9 , x = 4

Question
x 2 − 49 = 0

Answer x = 7 , x = − 7

Question
x 2 − 81 = 0

Answer x = 9 , x = − 9

Question
x 2 − 49 = 0

Answer x = 7 , x = − 7

Question
x 2 − 8 x − 20 = 0

Answer x = − 2 , x = 10

Question
x 2 = 9 x + 36

Answer x = − 3 , x = 12

Question
x 2 = 7 x + 8

Answer x = − 1 , x = 8

Question
x 2 + 5 x = 14

Answer x = − 7 , x = 2

Question
x 2 − 1 = 0

Answer x = 1 , x = − 1