Bonjour quelqu'un peut me faire svp? (2x+3)²-x(2x+3) Calculer x pour -2/3.... Pergunta de ideia deshanthinijekumar5

shanthinijekumar5 @shanthinijekumar5

December 2020 1 135 Report

Bonjour quelqu'un peut me faire svp?
(2x+3)²-x(2x+3)
Calculer x pour -2/3

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Alexis94e

Salut

$(2x+3)^{2}- x(2x+3)$

commence par remplacer x par -2/3

$(2*(-\frac{2}{3} )+3)^{2}- (-\frac{2}{3} )(2*(-\frac{2}{3} )+3)$

calculer le produit

$(-\frac{4}{3}+3)^{2} +\frac{2}{3} (-\frac{4}{3} +3)$

calcule la somme

$(\frac{5}{3})^{2} +\frac{2}{3} (-\frac{4}{3} +3)$

$(\frac{5}{3})^{2} +\frac{2}{3} *\frac{5}{3}$

$\frac{25}{9}+\frac{2}{3} *\frac{5}{3}$

multiplie les fractions

$\frac{25}{9}+\frac{10}{9}$

additionne les fractions

$\frac{35}{9}$

Bonne soirée :)

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