Question

thanks!!!!

Answer 1

@ganeshie8

Answer 2

@Michele_Laino

Answer 3

Please note that if I add and subtract 16 at the left side of your equation, I get:
\[x ^{2}+8x+16-16+13=5\]
furthermore note that:
\[x ^{2}+8x+16=(x+4)^{2}\]
please continue

Answer 4

x=-4

Answer 5

please note that after the substitution, I get this:
\[(x+4)^{2}-3=5\]
and finally:
\[(x+4)^{2}=8\]
so, what is a?, What is b?

Answer 6

a=8?

Answer 7

yes!

Answer 8

wait and b=18?

Answer 9

sorry b=8

Answer 10

haha and a=4 right?

Answer 11

ok!

Answer 12

thanks so much!!!!!!!!!!!!

Answer 13

thanks!