Question

ajudemmmm aí por favor

Answer 1

1) c

2) a) (x + 1)^2 - 24 = (x-3)^2

x^2 + x + x + 1 - 24 = x^2 - 3x - 3x + 9

x^2 + 2x - 23 = x^2 - 6x + 9

x^2 + 2x - 23 - x^2 + 6x - 9 = 0

8x - 32

8x = 32

x = 32

      8

x = 4

b) (x-4)^2 = x^2 - 40

x^2 - 4x - 4x + 16 = x^2 - 40

x^2 - 8x + 16 - x^2 - 40

-8x + 16 - 40

8x - 16 + 40

8x = 16 - 40

8x = - 24

x = - 24

       8

x = -3

3) a) (a+b)^2

a^2 +2ab + b^2

b) (m-3)^2

m^2 - 6m + 9

c) (2a + 3b)^2

8a^3 + 36a^2b + 54ab^2 + 27b^3