Practice
Solve for x.a) 0 = 25x2 −36
{-6/5,6/5}
{-6/5,6/5}
b) 9x2 =4
{-2/3,2/3}
{-2/3,2/3}
c) 81x2 −4 = 0
{-2/9,2/9}
{-2/9,2/9}
d) 0 = 81x2 −49
{-7/9,7/9}
{-7/9,7/9}
e) 0 = 64x2 −121
{-11/8,11/8}
{-11/8,11/8}
f) 169 = 9x2
{-13/3,13/3}
{-13/3,13/3}
g) 36x2 −121 = 0
{-11/6,11/6}
{-11/6,11/6}
h) 9x2 −121 = 0
{-11/3,11/3}
{-11/3,11/3}
i) 196 = 9x2
{-14/3,14/3}
{-14/3,14/3}
j) 36x2 =169
{-13/6,13/6}
{-13/6,13/6}