Odpowiedzi

2010-02-28T19:39:20+01:00
-4*[13*(-2)+(-28)]:15=-4*[-26-28]:15=-54:15=3,6

5+(-4)*(-4)-3*(-12):6=5+16+36:6=57:6=9,5
2010-02-28T19:41:19+01:00
A) -(-(-4)) * [8-(-5) * (-2) + (-4) * 7 ] : [-(-4) + 11] =
(-4)*[8-10-28]:[15]=(-4)*[-30}:[15]=(-4)*(-2)=8

b) -(-(-(-5))) + (-4) * (8-12) - ( - (-3)) * (-12) : (-(-6)) =
5+(-4)*(-4)-(36:6)= 5+16-6=15