Question

7) Resolva as equações a seguir.
a) (x + 3)2 = 9
b) (x + 3)2 = 4
08-X ob
c) (x + 3)2 = 0
d) (x - 3)2 = 0
e) (x - 3)2 = 1
Urgente, preciso dessa resposta urgente

Answer 1

a) (x + 3)2 = 9

2x + 6 = 9

2x = 9 -6

2x = 3

x = 3/2

b) (x + 3)2 = 4

2x + 6 = 4

2x = 4 -6

2x = -2

x = -1

c) (x + 3)2 = 0

2x + 6 = 0

2x = -6

x = -3

d) (x - 3)2 = 0

2x -6 = 0

2x = 6

x = 3

e) (x - 3)2 = 1

2x -6 =1

2x = 1 + 6

2x = 7

x = 7/2