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OpenStudy (anonymous):
HELP! How do I factor x^2+9x+20?
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pooja195 (pooja195):
Are we supposed to use the quadratic equation?
pooja195 (pooja195):
*formula
OpenStudy (anonymous):
I have to find two numbers that multiply to equal the constant term c, and also add up to equal b
pooja195 (pooja195):
ooh this should be too hard then :) |dw:1445817834491:dw|
pooja195 (pooja195):
|dw:1445817876383:dw|
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pooja195 (pooja195):
What numbers multiply to make 20 but add to make 9?
OpenStudy (anonymous):
10*2?
pooja195 (pooja195):
The multiply to 20 but to not add or subtract to make 9
pooja195 (pooja195):
Think... 5 x 4=20 and add to 9 right? so our answer would be (x+5)(x+4) do you understand?
OpenStudy (anonymous):
Yes!
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