Question

√(X-8 ) + √X = -5.. WHAT IS X?

Answer 1

Hi

Answer 2

the question is \[\sqrt{x-8}+\sqrt x=-5\]
right ?
First, you bring one square root on other side, so,
\[\sqrt{x-8}=-\sqrt x-5\]
now, square both sides, and tell me what you get ?

Answer 3

x - 8 = x - 25 ???

Answer 4

Is this the answer? 17 = 0

Answer 5

ummm. nopes, actually \[(a-b)^2=a^2-2ab+b^2\]
so, squaring both sides of \(\sqrt{x-8}=-\sqrt x-5\) will give you
\(x-8=x-10\sqrt{x}+25\)
because \((\sqrt{variable})^2=variable.\)
now , try to isolate \(\sqrt x\) from that equation., what you get ?

Answer 6

Thank you for your time. I have already gotten the answer from someone else.

Answer 7

ohh....okk.
welcome ^_^