Multiplying Polynomials
(2x-3)(x+5)
(y+9)+(2y-3)
3y+6
x(x+8)=0
x=0 and -8
Factor:
5x2+45x
5x(x+9)
Solve
2x+10=0
x=-5
(7-x)(4+3x)
-3x2+17x+28
(2x2+5)+(-x2+4)
x2+9
(x+6)(x-5)=0
x=-6 and 5
3x2(x-3)
Solve
6x2+12x=0
0,-2
(5x-5)(9x+2)
45x2-35x-10
(-3x2+x)-(2x2+7)
-5x2+x-7
(4x-12)2=0
x=3
20x3+30x2
10x2(2x+3)
Solve
8x3-2x2=2x3-5x2
0,-.5
(x+5)(x2-3x-2)
x3+2x2-17x-10
(x2-3xy+y2)+(-x2+xy+y2)
-2xy+2y2
(1/2x+4)(x-8)=0
x=-8 and 8
4x3-8x+12
4(x3-2x+3)
Solve
6x3+39x2=0
0,-13/2
(2x+1/2)(x-3/2)
2x2-5/2x-3/4
(-x2+4x)-(x2-3x+15)
-2x2+7x-15
(1/3x-2)(1/3x+2)=0
x=6 and -6
5x2+20x+50
5(x2+4x+10)
Solve
2x2=2piy
0, and pi