1) -2,3х*4= (-2,3*4)х=-9,2х
2)9у*(-3)=(-3*9)*x=-27y
3)5,2х*(-2)=(-2*5,2)*x= -10,4x
4) у*6==4y
5) -4,1х*(-5)=(-4,1*(-5))*x=20,5x
6) у*15=y=-9y
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Answers & Comments
1) -2,3х*4= (-2,3*4)х=-9,2х
2)9у*(-3)=(-3*9)*x=-27y
3)5,2х*(-2)=(-2*5,2)*x= -10,4x
4) у*6==4y
5) -4,1х*(-5)=(-4,1*(-5))*x=20,5x
6) у*15=y=-9y