Question

find all real solutions of sq root of 5-x = x+7 (step by step response please) :)

Answer 1

Is it \[\sqrt{5-x} = x+7\]or\[\sqrt{5}-x=x+7\]Use parentheses please

Answer 2

(5-x)

Answer 3

square both sides

Answer 4

5-x=(x+7)^2

Answer 5

5-x=x^2+14x+49
add x to both sides
5=x^2+15x+49
-5 to both sides
0=x^2+15x+44

Answer 6

0=(x+11)(x+4)
x=-11 x=-4

Answer 7

thank you!

Answer 8

anytime