Question

solve for x: sqrt{x+7}=x+5

Answer 1

check your answer

Answer 2

Squeaky Think About it !!!
How WILL YOU REMOVE A SQRT(1/2).........

Answer 3

Square both sides, dude. Then foil.

Answer 4

sqrt{x+7}=x+5 [square both sides]

x +7 = (x+5)^2
x +7 = x^2 + 10x +25

0 = x^2 + 9x +18

0 = [x^2 + 3x] + [6x +18]

0 =x [x + 3] + 6[x +3]

0 =[x + 3] [x +6]

Hence x = -3 or x = -6

Answer 5

i got x=-6

Answer 6

Yes but there are two roots