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repede
a)1pe5x(+2pe3)=
b)(-2pe5)x(-3pe7)=
c)(-6pe5)x(+1pe8)=
d)(+4pe3)x(-5pe6)=
e)3x(-1pe2)=
f)-5x(2pe5)=
g)-4pe5x(-30)=
i)-1,6x5=
j)-1,25x(-8)=