Question

A) x^2 + 6x + 9 = 0

B) 8x^2 + 5x - 6 = 0

C) (x+4)^2 - 36 = 0

D) x^2 + 2x = 7

Solve each quadratic equation by using any methods you have learned. For each equation, tell which method you used & why you chose it... ( I attempted C but I am not sure if it is correct )

Answer 1

what are the methods that you've learned??

Answer 2

I learnt the AC method

Answer 3

& completing the square

Answer 4

Im almost positive that you use completing the square for C

Answer 5

for C I got x = -4 +/- -10