abcd Quadratic Equations - Difference of Two Squares(L2)
Quadratic Equations - Difference of Two Squares(L2)


Practice

Solve for x.
a)    0 = 4x2 −121
{-11/2,11/2}

b)    25x2 −4 = 0
{-2/5,2/5}

c)    169 = 49x2
{-13/7,13/7}

d)    25x2 −36 = 0
{-6/5,6/5}

e)    81 = 25x2
{-9/5,9/5}

f)    9x2 −49 = 0
{-7/3,7/3}

g)    25x2 −4 = 0
{-2/5,2/5}

h)    81x2 =169
{-13/9,13/9}

i)    0 = 49x2 −144
{-12/7,12/7}

j)    0 = 25x2 −196
{-14/5,14/5}