Will mark brainliest but plz answer all these

1. solve the quadratic equation.

(x - 7)2 = 81

a)
x = 2 or -7

b)
x = -16 or 2

c)
x = 16 or -2

d)
x = ±7

2) solve the quadratic equation by completing the square.

x2 + 4x - 3 = 0

a)
x = 4 ±

7

b)
x = 2 ±

7

c)
x = -4 ±

7

d)
x = -2 ±

7

3) in the quadratic equation x2 - 8x + a = 0; what is the value, a, in order to form a perfect square?

a)
8

b)
16

c)
32

d)
64

4) solve.

x2 − 8x − 12 = 36

a)
x = 4, x = 6

b)
x = 4, x = −12

c)
x = −4, x = 12

d)
x = −4, x = −6