How do you solve (x - 3)^2 = 25?

1 Answer
Apr 13, 2016

=>x=8 or x=-2

Explanation:

Take the square root of both sides giving

sqrt( (x-3)^2) = +-sqrt(25)

Technically it should be +-sqrt( (x-3)^2) = +-sqrt(25)

But the same answer would be obtained by

sqrt( (x-3)^2) = +-sqrt(25)

=> x-3=+-5

=> x=3+-5

=>x=8 or x=-2