Factoring: x2+bx+c
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Mental Math
100

Factor: x2 + 4x + 3

(x+1)(x+3)

100

(v + 1)(v + 1)

v2 + 2v + 1

100

2 (x+3)

2x+6

100

2+5

7

200

Factor: x2-8x+15

(x-5)(x-3)

200

 (m - 5)(m - 3 )

m2 - 8m + 15

200

-2 (x+3)

-2x-6

200

-2+5

3

300
Factor: m2 + 24m - 81
(m-3)(m+27)
300

 (x+4)(x+7)

x2 +11x +28

300

2(x-3)

2x-6

300

-2-5

-7

400

v2 - 4v - 12

(v+2)(v-6)

400

 (k + 6)(k  - 2)

k2 + 4k - 12

400

2(-x+3)

-2x+6

400

2-5

-3

500

x2 - 16x + 60

(x-10)(x-6)

500

(x -3)(x+6)

x2+3x-18

500

-2(-x-3)

2x+6

500

22+5

9