ALGEBRA HELP QUICK PLEASE?

christa

(x-4)^2=45 use square root property to solve and simplify, the solution is?

ninja

+-sqrt(45)+4

anonymous

(x-4)^2=45

taking square root on both sides, we get

x-4 = +-√45

=> x-4 = +-3√5

add 4 on b/s

=> x = (+-3√5) +4

therefore,

x = 4+ 3√5 and

x = 4- 3√5