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OpenStudy (anonymous):
multiply & simplify z²-4 z²-2z ----- * ------ z² z²+5z-14
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OpenStudy (anonymous):
(z^2-4) z(z-2) ---------- * ---------- z^2 (z+7)(z-2)
OpenStudy (anonymous):
(z^2 -4) --------- z(z+7)
OpenStudy (anonymous):
i got (z-2)(z+2) -------- z(z+7)
OpenStudy (anonymous):
is this right?
OpenStudy (anonymous):
both r same
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