What are the solution(s) of x2-4=0
Is that x^2 -4 = 0?Then the two solutions are x = 2 and x = -2
First you add 4 on both sidesX^2=0Then you take square on both sidesX=+- the square root of 4Simplify thatX=plus or minus 2The answer can be either -2 or +2 (which is just 2)
