Efetue as expressões a)(5x²-2x+3)-(3x²-7x+5) b) (-3a²).(5ab)=.... Pergunta de ideia deHashamiJungkook

HashamiJungkook @HashamiJungkook

December 2019 1 66 Report

Efetue as expressões

a)(5x²-2x+3)-(3x²-7x+5)

b) (-3a²).(5ab)=

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GlehSilva (5x^2-2x+3)-(3x^2-7x+5) =
5x^2-2x+3-3x^2+7x-5 =
5x^2-3x^2-2x+7x+3-5 =
(5-3)×3x^2 + (-2×7) × (-2x) + 3 - 5 =
6x^2 + 28x + (-2)

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HashamiJungkook E a b?

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