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Mathematics, 04.03.2020 23:13 sselect1

Prove each polynomial identity
20. (g+h)^2-2gh=g^2+h^2
21. (2x+1)(3x+1)+(x-1)=6x(x+1)

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Prove each polynomial identity
20. (g+h)^2-2gh=g^2+h^2
21. (2x+1)(3x+1)+(x-1)=6x(x+1)...
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