abcd Quadratic Equations - Trinomials(L2)
Quadratic Equations - Trinomials(L2)


Practice

Solve for x.
a)    10x2 − 7x − 12 = 0
{-4/5,3/2}

b)    10x2 + 31x − 14 = 0
{2/5,-7/2}

c)    14x2 + 47x − 7 = 0
{1/7,-7/2}

d)    28x2 + 45x − 7 = 0
{1/7,-7/4}

e)    28x2 − 33x − 28 = 0
{-4/7,7/4}

f)    7x2 − 17x − 12 = 0
{-4/7,3}

g)    20x2 − 17x − 10 = 0
{-2/5,5/4}

h)    20x2 − 27x − 14 = 0
{-2/5,7/4}

i)    7x2 + 31x − 20 = 0
{4/7,-5}

j)    5x2 − 17x + 6 = 0
{2/5,3}