Polynomials Factoring Cheat Sheet Page 4
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1
2
3
4Pull out common factors leftward and upward, and use them as your
binomials:
4x
5
2
2z
| 8x
| 10x |
-3
| -12x | -15 |
Check to make sure, sometimes a +/- sign will be off in one or the other
2
(2x – 3)(4x + 5) = 8x
-12x +10x -15 ?
2
= 8x
-2x -15
VERIFIED
Use this procedure whenever there are multiple sets of factors for the a and the c
in the original quadratic. It will save considerable time and effort. Use direct trial
and error whenever there is only one set of factors for the a and the c.
4
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