Practice
Solve for x.a) x2 −196 = 0
{-14,14}
{-14,14}
b) 0 = x2 −49
{-7,7}
{-7,7}
c) x2 =400
{-20,20}
{-20,20}
d) 144 = x2
{-12,12}
{-12,12}
e) 0 = x2 −100
{-10,10}
{-10,10}
f) x2 =256
{-16,16}
{-16,16}
g) x2 =121
{-11,11}
{-11,11}
h) x2 −225 = 0
{-15,15}
{-15,15}
i) x2 −25 = 0
{-5,5}
{-5,5}
j) x2 =9
{-3,3}
{-3,3}