Ответ:
-9*(-3-у)*(-0,6)= (27+9y)*(-0,6)= -16,2-5,4у
4*k*(-2,5)= 4k*(-2,5)= -10k
а*2*(-5)*(х+у)= -10а*(х+у)= -10ах-10ау
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Ответ:
-9*(-3-у)*(-0,6)= (27+9y)*(-0,6)= -16,2-5,4у
4*k*(-2,5)= 4k*(-2,5)= -10k
а*2*(-5)*(х+у)= -10а*(х+у)= -10ах-10ау