bonjour, n°33) 2(0)x2(3)=2(0+3)=2(3) 5(2)x5(4)=5(2+4)=5(6) 7(3)x7=7(3+1)=7(4) 9(7)x9(3)x9(2)= 9(7+3+2)=9(12) 2(4)/2(5)= 2(4-5)=2(-1) 3(5)/3(2)=3(5-2)=2(-1) 5(6)/5(-3)=5(6+3)=5(9) 4(-4)/4(5)=4(-4-5)=4(-9) 2(4)x3(4)=2(4+4)=2(8) 6(3)x5(3)=30(7+2)=30(6) 4(7)x5(2)=20(7+2)=20(9) 7(-3)x4(-3)=28(-3-3)=28(-6) 2(4)x2(3)/2(5)=2(4+3)/2(5) =2(7-5)=2(2) 3(5)/3(2)x3(1)=3(5)/3(2+1)=3(5-3)=3(2) 1/2(5)=1/2(1-5)=1/1(-4) 2(4)x2(2)/2(5)x2(3)=2(4+2)/2(5+3)=2(6-8)=2(-2) n°4) A=7+12-15-4²-3² A=4-16-9 A= -21 B=(-5)²+3(11-7)² B=25+3(4)² B=25+48 B=72 C=(4-6)(4)-3²+36-8² C=(-2)(4)-9+36-8² C=16-101 C= -85 D=4²-5x2(3)-3² D=7-40 D= -37
