Solve each equation by factoring.
p2 + -2p - 10 = 5
{5, -3}
4x2 + 25 = 125
x= 5 and x = -5
b2 − 4b + 4 = 0
{2}
a2 + 14a - 51 = 0
{3, -17}
Write the Quadratic Formula.
x=(-b±square root(b2-4ac))/2a
9n2 + 39n = -36
{-4/3, -3}
(4x + 1)2 - 16 = 0
x = 3/4 and x = -5/4
m2 − 5m − 14 = 0
{7, −2}
x2 − 12x + 11 = 0
{11, 1}
Solve the equation
3g2-24g+21=0
g=1 and g=7
7r2 + 84 = -49r
{-4, -3}
34 = (a - 2)2 - 2
a = 8 and a = -4
2x2 − 3x − 5 = 0
{5/2 , −1}
n2 = 18n + 40
{20, −2}
Solve the equation.
x2-16x=-15
x=1 and x=15
3v2 + 7v = 40
{8/3, -5}
0 = 3(x + 7)2 - 24
x = -7 ± 2 square root of 2
9n2 = 4 + 7n
{ 7 ± square root of 193 / 18}
x2 − 10x + 26 = 8
x= 5 ± square root 7
Solve the equation.
x2+11x=-10
x=-10 and x=-1