Odpowiedzi

2009-10-08T16:22:27+02:00
A) -(-(-4))x[8-(-5)x(-2)+(-4) x7] : [ -(-4) + 11] =
=-4×[8+5×(-2)-4×7]:[4+11]=
=-4×[8-10-28]:[15]=
=-4[-30]:[15]=
=120:15=8
nieparzysta liczba minusow zostawia minusa
2009-10-08T16:24:45+02:00
-(-(-4))x[8-(-5)x(-2)+(-4) x7] : [ -(-4) + 11] =
(-4)*[8-10-28]:[4+11] =
(-4)*[-30]:15 =
(-4)*(-2) = 8