Odpowiedzi

2010-03-07T11:20:05+01:00
A) (3x²-xy*(-2y))*3x = 9x³-3x²y-6xy
b) 3x²-xy*(-2y*3x) = 3x²-xy*(-6xy) = 3x²+6x²y²
c) (3x²-xy-2y)*3x = 9x³-3x²y-6xy
d) 3x²-xy*3x+(-2y)*3x = 3x²-3x²y-6xy
2010-03-07T11:20:24+01:00
A)(3x²-xy*-2y)*3x=9x³-3x²y-6xy
b)3x²-xy*(-2y*3x)=3x²+2xy²-3x²y
c)(3x²-xy+-2y)*3x=9x³-3x²y-6xy
d)3x²-xy*3x+-2y*3x=3x²-3x²y-6xy