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OpenStudy (anonymous):
factor this a2 – a – 20
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OpenStudy (nory):
You always want to see first if there is a common factor. Is there?
OpenStudy (anonymous):
can you show your work too please
OpenStudy (ajprincess):
Can you pls tell me two factors of -20 b nd csuch that their sum is -1. i.e b+c=-1 b*c=-20
OpenStudy (anonymous):
-10 , -2
OpenStudy (ajprincess):
-10+(-2)=-10-2=-12
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OpenStudy (ajprincess):
nd also -10*-2=20
OpenStudy (ajprincess):
so they are nt the factors u need
OpenStudy (ajprincess):
Any other factors? @allie_bear22
OpenStudy (nathan917):
(a-5) * (a+4) Would this be the answer?
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