Question

What are the solution(s) to the quadratic equation x2 – 25 = 0?

Answer 1

X= 5 and it also equals -5

Answer 2

hi  

x²-25 =  (x+5)  ( x-5)  

As a multiplication can only add up to zero if one of term is  0 ,

there is two solutions  :  

x+5 = 0

x = -5  

and   x-5 = 0

        x = 5  

So two solutions for  x² -25 = 0  which are   -5  and 5