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