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OpenStudy (anonymous):
factor this and show work please help a2 – a – 20
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OpenStudy (uri):
a2 – a –20 a^2-5a+4a-20 a(a-5)+4(a+5) (a+5(a+4)
OpenStudy (anonymous):
thank you
OpenStudy (cwrw238):
slight error the last line should be (a - 5)(a + 4)
OpenStudy (uri):
Sorry typo..
OpenStudy (uri):
a2 – a –20 a^2-5a+4a-20 a(a-5)+4(a-5) (a-5(a+4)
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