8.5 Solving by Factoring
x(x+7)=0
(-7,0)(0,0)
0=(2x−7)(x+2)
(-2,0)(3.5, 0)
25x2−16
(5x-4)(5x+4)
20x2-15x
5x(4x-3)
2x2+5x-12
(x+4)(2x-3)
(2x−5)(4x−5)=0
(1.25,0)(2.5,0)
0=(3x+1)(6x−5)
(-1/3,0)(5/6,0)
x10−81
(x5-9)(x5+9)
44a2+11a
11a(4a+1)
4x2-49
(2x-7)(2x+7)
3x2−x=4
(-1,0)(4/3,0)
0=2x2−4x−30
(-3,0)(5,0)
2x2+10x−14
2(x2+5x-7)
24y-36x
12(2y-3x)
16x2-9
(4x-3)(4x+3)
0 = 4x2−12x+9
(1.5,0)
0 = 6x2−5x+2
no solution
4x4−36
(4x2-3)(4x2+3)
3n3+122
3n2(n+4)
4x2+12x+9
(2x+3)2
0=x2−7x+15
no solution
3x2−5x−8 =0
(-1,0)(8/3,0)
y8−16
(y2-2)(y2+2)(y4+4)
-8s4+20r3-28
4(2s4-5r3+7)
6x2-13x-5
(2x-5)(3x+1)