Difference of Squares
Plus in the Back
Minus at the End
Determining Zeros
Factoring and Determining Zeros
100
x2-25
(x-5)(x+5)
100
x2-7x+12
(x-4)(x-3)
100
x2-3x-4
(x-4)(x+1)
100
(x+5)(x-3)=0
x=-5;x=3
100
x2+3x-4=0
(x-1)(x+4)=0 x=1;x=-4
200
x2-49
(x+7)(x-7)
200
x2+8x+15
(x+3)(x+5)
200
x2+2x-8
(x+4)(x-2)
200
(x-8)(x+2)=0
x=8;x=-2
200
x2-11x+30=0
(x-5)(x-6)=0 x=5;x=6
300
x2-121
(x+11)(x-11)
300
x2+17x+72
(x+8)(x+9)
300
x2-5x-6
(x-6)(x+1)
300
(x-7)(x+7)=0
x=7;x=-7
300
x2-12x+36
(x-6)(x-6)=0 x=6
400
x2-225
(x+15)(x-15)
400
x2-11x+24
(x-8)(x-3)
400
x2+x-72
(x+9)(x-8)
400
(x-6)(x-6)=0
x=6
400
x2-16x-28
(x-14)(x-2)=0 x=14;x=2
500
4x2-9
(2x+3)(2x-3)
500
x2+10x+25
(x+5)(x+5)
500
x2-2x-15
(x+3)(x-5)
500
(2x-3)(x+1)=0
x=3/2;x=-1
500
x2-13x-48
(x+3)(x-16)
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