The cost of 7z metres cloth is ₹(14z^2+21z^3). Find the cost of 1 metre cloth. Give the answer step by step.
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Step-by-step explanation:
length of cloth=7z
cost of 7z cloth=(14z^2+21z^3)
cost for 1 m cloth=(14z^2+21z^3)/7z
=2z+3z^2
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