abcd Quadratic Equations - Difference of Two Squares(L1)
Quadratic Equations - Difference of Two Squares(L1)


Practice

Solve for x.
a)    x2 −400 = 0
{-20,20}

b)    x2 −121 = 0
{-11,11}

c)    x2 −64 = 0
{-8,8}

d)    16 = x2
{-4,4}

e)    64 = x2
{-8,8}

f)    x2 =289
{-17,17}

g)    x2 −121 = 0
{-11,11}

h)    x2 =121
{-11,11}

i)    x2 −25 = 0
{-5,5}

j)    0 = x2 −225
{-15,15}