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


Practice

Solve for x.
a)    0 = 4x2 −9
{-3/2,3/2}

b)    25x2 −36 = 0
{-6/5,6/5}

c)    81 = 64x2
{-9/8,9/8}

d)    25x2 =121
{-11/5,11/5}

e)    9x2 =25
{-5/3,5/3}

f)    0 = 81x2 −25
{-5/9,5/9}

g)    121 = 64x2
{-11/8,11/8}

h)    81x2 −4 = 0
{-2/9,2/9}

i)    9 = 25x2
{-3/5,3/5}

j)    25x2 =121
{-11/5,11/5}