Question

√(5a+2)=-√(a+7)
I got a= -3/2
please check my answer

Answer 1

\[\sqrt{5a+2}=-\sqrt{a+7}\]
square both sides
\[5a+2=a+7\]
\[5a-a=7-2\]
\[4a=5\]
\[a=\frac{4}{5}\]

Answer 2

but there is no solution

Answer 3

If 4a=5 then a= 5/4

Answer 4

yep i made a mistake there but still there is no solution