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OpenStudy (anonymous):
factor x^2-28x-60
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OpenStudy (anonymous):
this can be factored. do you know how to factor?
OpenStudy (anonymous):
no not really
OpenStudy (anonymous):
Do you know the FOIL rule?
OpenStudy (anonymous):
yes
OpenStudy (pfenn1):
\[x^2 -28x-60=(x+a)(x+b)\text { where }a+b=-28 \text { and }ab=-60\]
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OpenStudy (pfenn1):
What are the factors of -60 that when you add them together give you -28?
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