Factoring Level 1
3x2 + 7x
x(3x + 7)
p2 − 5 p − 14
( p + 2)( p − 7)
2b2 + 17b + 21
(2b + 3)(b + 7)
Quadratics must equal ____ in order to solve by factoring.
0
x2 − 9x + 18 = 0
x = 3 and 6
7k2 + 9k
k(7k + 9)
x2 − 7x − 18
(x + 2)(x - 9)
5p2 − p − 18
(5p + 9)( p − 2)
(x - 2)(x - 9) = 0
x = 2 and 9
x2 + 5x + 4 = 0
x = -1 and -4
x2 + 3x + 2
(x + 2)(x + 1)
m2 − 9m + 8
(m − 1)(m − 8)
7x2 − 45x − 28
(7x + 4)(x − 7)
x(x - 17) = 0
x = 0 and 17
b2 + 5b = 0
b = 0 and -5
x2 + 14x + 40
(x+10)(x+4)
2x2 - x - 3
(2x - 3)(x + 1)
6x2 - 5x + 1
(2x - 1)(3x -1)
n2 − 64 = 0
n = 8 and -8
k2 + 15k = −56
k = -7 and -8
x2 + 13x + 40
(x+8)(x+5)
2x2 + 11x + 5
(2x+1)(x+5)
10x2 + 11x - 6
(2x + 3)(5x - 2)
3(x + 4)2 - 5 = 10
-4 + sqrt 5 and -4 - sqrt 5
5x2 − 13x = −6
x = 3/5 and 2