Comment developper(x+2)^3

(x+2)^3 = x^3 + 6x² + 12x + 8

Oui! x^3+6x^2+12x+8 il est exact! Merci pour une bon question :)

-7 (-x+3)+3(x+2)+2(x-1)

Pour celle la comment fait-on : (1:8 - 2:3x)(8:3x -1:6)

Comment ont ressou celle la ? : 3x²+3x+5-x²+2x-4

Question bête mais bon : comment développer (x+1)^3

X^3+3x^2*1+3*1^2*x+1^3

C'est un QCM je dois trouver la solution de l'équation x^(2/3)=a Les solution sont: A: x=a^(2/3) B: x=(3/2)a C: x=a^-(3/2) D: w=a^(3/2) Merci

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