Réponses

2013-09-21T19:41:03+02:00
2 +  \frac{5}{3} +  \frac{12}{9} = 2 +  \frac{15}{9} +  \frac{12}{9} = 2 +  \frac{27}{9} =  5 <== SIMPLIFIER

-25 : 5 + (-2) * (-3,5) = -5 + 7 = 2

2 * ( -3^{2} ) - 3 * (-3) -13 = -18 + 9 - 13 = -9 - 13 = -22