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OpenStudy (anonymous):

simplify by removing factors of 1 35z^2-875/49z^2-1225

OpenStudy (anonymous):

(35z^2 -875)/(49z^2-1225) Taking 35 common from numerator and 49 common from Denominator, it becomes [35(z^2-25)]/[49(z^2-25)] z^2-25 is common in both Nr and Dr, so it is cancelled and we are left with 35/49, which comes out to be 5/7 Answer is 5/7

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