Réponse :
Explications étape par étape :
a. (3/2)x * (5/4)x + (3/2)x * 4 = (15/8) x² + (12/2)x = (15/8) x² + 6x
b. 5x * ( (1/3)x + (2/7) )
c. (x+2)/x*(x+2) + x/x*(x+2) = (x+2+x) / x(x+2) = (2x+2) / x(x+2)
d. x/x(x+3) - (x+3)/x(x+3) = [x-(x+3)] / x(x+3) = [x-x-3] / x(x+3) = -3 / x(x+3)
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Réponse :
Explications étape par étape :
a. (3/2)x * (5/4)x + (3/2)x * 4 = (15/8) x² + (12/2)x = (15/8) x² + 6x
b. 5x * ( (1/3)x + (2/7) )
c. (x+2)/x*(x+2) + x/x*(x+2) = (x+2+x) / x(x+2) = (2x+2) / x(x+2)
d. x/x(x+3) - (x+3)/x(x+3) = [x-(x+3)] / x(x+3) = [x-x-3] / x(x+3) = -3 / x(x+3)