Question

(x^2+13)^1/2=7

Answer 1

(x^2+13)^1/2=7

x^2 + 13 = 7^2

x^2 = 49-13

x^2 = 36

x = +36 or x = -36

Answer 2

i got x=-6 and x=6

Answer 3

yes, my bad. i forgot to take the square root. :)

Answer 4

ohh ok thank you so much