Practice
Solve for x.a) x2 −16 = 0
{-4,4}
{-4,4}
b) 25 = x2
{-5,5}
{-5,5}
c) 0 = x2 −169
{-13,13}
{-13,13}
d) 64 = x2
{-8,8}
{-8,8}
e) 25 = x2
{-5,5}
{-5,5}
f) x2 =256
{-16,16}
{-16,16}
g) x2 =225
{-15,15}
{-15,15}
h) 225 = x2
{-15,15}
{-15,15}
i) x2 −16 = 0
{-4,4}
{-4,4}
j) x2 =25
{-5,5}
{-5,5}
