Solve by factoring.
p2 -2p - 10 = 5
5, -3
3x2 = 48
x= 4 or x = -4
m2 − 5m − 14 = 0
{7, −2}
a2 + 14a - 51 = 0
{3, -17}
Complete the square for:
x2-10x
x2-10x+25
n2 + 15n = -36
-12, -3
(x + 1)2 - 25 = 0
x = 4 or x = -6
b2 − 4b + 4 = 0
{2}
x2 − 12x + 11 = 0
{11, 1}
g2 - 8g = -9
g = 6.65 & 1.35
3r2 - 3 = 8r
-1/3, 3
(a - 2)2 - 2 = 34
a = 8 or a = -4
2x2 − 3x − 5 = 0
{2.5 , −1}
n2 = 18n + 40
{20, −2}
x2 - 16x = -15
x = 1 and 15
3v2 - 2v = 5
5/3, -1
3(x + 7)2 - 147 = 0
x = 0 or x = -14
9n2 = 4 + 7n
{ 1.16 and -0.38 }
x2 − 10x + 26 = 8
{7.65, 2.35 }
x2 + 10x = -10
x = -1 and -9