Question

PLEASE HELP!!!!!!!!!!

Answer 1

What was the first incorrect step?

Answer 2

@mathmale @sidsiddhartha @ganeshie8

Answer 3

yeah it looks good

Answer 4

well one step has to be wrong....
here are my options:

Answer 5

well take a look at step 5 again :P

Answer 6

\[[x^2+\frac{ b }{ a }x+(\frac{ b }{ 2a})^2]=(x+\frac{ b }{ 2a })^2\]
not
\[(x+\frac{ b }{ 4a })^2\]

Answer 7

remember
\[(a^2+2ab+b^2)=(a+b)^2\]

Answer 8

so the answer is b of my choices?

Answer 9

yeah it is

Answer 10

thanks :)

Answer 11

yw!!!