Pls solve the equation using a quadratic formula?

Question

1. x^2+2x-2=0
2. x^2+10x+9=0
3. 2x^2+x-15=0
4. 2x^2+7x+3=0
5. x^2-10x-23=0
6. 4x^2-20x+25=0
7. x^2-6x+4=0
8. -3x^2+4x-12=0
9. -2x^2+8x=0
10. 2x^2+3x-20=0
11.3x^2-8x+3=0
12. 4x^2+20x+23=0
pls with complete solution....

Answer 1

Do your own homework.

Answer 2

X^2+2X+1-1-2=0
X^2+2X+1-3=0
X^2+2X+1=3
(X+1)^2=3
X+1=(+-) radical 3
x+1=R3 x=R3-1
x+1=-R3 x=-1-R3
please dont be lazy and shake a leg and do your homework.
in stead of waisting time before tv