Question: What is wrong with the following proof that -3 = 3, using backward reasoning? Assume that -3 = 3. Squaring both sides yields (-3) 2

What is wrong with the following "proof" that -3 = 3, using backward reasoning? Assume that -3 = 3. Squaring both sides yields (-3)² = 3², or 9 = 9. Therefore -3 = 3

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