Cuanto es (x+3)(x-3).... Question from @DANIEL9595

October 2018 2 17 Report

Cuanto es (x+3)(x-3)

abrahamcontrer29 Por el polinomio de diferencia de cuadrados es x^2 - 9

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luisdo A²-b²=(a+b)(a-b)

(x+3)(x-3)= x²-3²=x²-9

rpta: x²-9

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