Practice
Solve for x.a) 49 = x2
{-7,7}
{-7,7}
b) 196 = x2
{-14,14}
{-14,14}
c) x2 =289
{-17,17}
{-17,17}
d) 0 = x2 −9
{-3,3}
{-3,3}
e) x2 −81 = 0
{-9,9}
{-9,9}
f) x2 −81 = 0
{-9,9}
{-9,9}
g) 0 = x2 −64
{-8,8}
{-8,8}
h) x2 −16 = 0
{-4,4}
{-4,4}
i) x2 =361
{-19,19}
{-19,19}
j) x2 −36 = 0
{-6,6}
{-6,6}
