Mathematics, 01.03.2020 05:04 espinosajoselyn

Tim wrote the expressions g^2-2gh-h^2 and -g(g+2h-1) -h^2. He substituted 0 for g and 1 for h, and said the expressions are equivalent. Is he correct? Explain.

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Tim wrote the expressions g^2-2gh-h^2 and -g(g+2h-1) -h^2. He substituted 0 for g and 1 for h, and s...