Practice
Solve for x.a) 9 = 4x2
{-3/2,3/2}
{-3/2,3/2}
b) 0 = 81x2 −64
{-8/9,8/9}
{-8/9,8/9}
c) 16x2 =9
{-3/4,3/4}
{-3/4,3/4}
d) 4x2 −9 = 0
{-3/2,3/2}
{-3/2,3/2}
e) 100 = 81x2
{-10/9,10/9}
{-10/9,10/9}
f) 0 = 49x2 −25
{-5/7,5/7}
{-5/7,5/7}
g) 81x2 =169
{-13/9,13/9}
{-13/9,13/9}
h) 16 = 49x2
{-4/7,4/7}
{-4/7,4/7}
i) 36x2 =121
{-11/6,11/6}
{-11/6,11/6}
j) 64x2 −25 = 0
{-5/8,5/8}
{-5/8,5/8}