Question

Solve the following quadratic equation by formula method (x+2)^2-9=0

Answer 1

Answer:

x^2+4x+4-9=0

X^2+4x-5=0

(x +5)(x-l)=0

x =-5,1

Answer 2

Answer:

x^2 +4x +4 -9

x^2 + 4x - 5 =0

quadratic formula

taking negative sign

-4 -√ 4^2 - 4*1*-5/2*1

-4-√16+20/2

-4-√36/2

-4-6/2

-10/2

-5

taking positive sign

-4+6/2

2/2

1

hope it will help you