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Mathematics 17 Online
OpenStudy (anonymous):

please Help!!!!! Explain

OpenStudy (anonymous):

\[z ^{2}-7z+12\]

OpenStudy (anonymous):

what the factor ??????????

OpenStudy (aravindg):

look here sum of terms is -7 and product is 12 !! try to get two nos who satisfy this !!

OpenStudy (aravindg):

gt it ?

OpenStudy (aravindg):

so the factorised form is (z-4)(z-3)

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