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What is the simplest form of c^2-d^2÷d^2+cd-2c^2 where c does not equal d

User Folabi
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1 Answer

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c^2 - d^2 / d^2 + cd - 2c^2
= cd + c^2 - 2c^2 - d^2 / d^2
= cd - c^2 - 1 (answer)
User Vstm
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