Quadratic Equations - Difference of Two Squares(L2)


Practice

Solve for x.
a)    9x2 =121
{-11/3,11/3}

b)    9 = 16x2
{-3/4,3/4}

c)    49x2 −64 = 0
{-8/7,8/7}

d)    144 = 49x2
{-12/7,12/7}

e)    25x2 −121 = 0
{-11/5,11/5}

f)    64x2 −81 = 0
{-9/8,9/8}

g)    49x2 =144
{-12/7,12/7}

h)    16x2 −9 = 0
{-3/4,3/4}

i)    25x2 −169 = 0
{-13/5,13/5}

j)    0 = 64x2 −25
{-5/8,5/8}