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OpenStudy (anonymous):
Simplify: x^2-100/x^2+7x-30
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OpenStudy (anonymous):
i need help
OpenStudy (saifoo.khan):
Factor both, the numerator and denominator.
OpenStudy (saifoo.khan):
x^2 - 100 can be written as, (x-10)(x+10) Agree?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
so the second part is x+3
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OpenStudy (saifoo.khan):
x^2+7x-30 = (x-3) (x+10)
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