Practice
Solve for x.a) 256 = x2
{-16,16}
{-16,16}
b) 25 = x2
{-5,5}
{-5,5}
c) 100 = x2
{-10,10}
{-10,10}
d) x2 =25
{-5,5}
{-5,5}
e) 400 = x2
{-20,20}
{-20,20}
f) 289 = x2
{-17,17}
{-17,17}
g) 36 = x2
{-6,6}
{-6,6}
h) x2 =169
{-13,13}
{-13,13}
i) 0 = x2 −400
{-20,20}
{-20,20}
j) 0 = x2 −36
{-6,6}
{-6,6}
