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Marishka12345678
@Marishka12345678
August 2021
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упростите выражение а)-а *(-7) б)5а*(-5b) в)2/3а * (-3/7b)*3/5c
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tan4ik3107
A)-a*(-7)=7a
б)5а*(-5в)=-25*а*в
в)2/3а*(-3/7в)*3/5с= (2*(-3)*3)/(3*7*5)*а*в*с= -6/35*а*в*с
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Answers & Comments
б)5а*(-5в)=-25*а*в
в)2/3а*(-3/7в)*3/5с= (2*(-3)*3)/(3*7*5)*а*в*с= -6/35*а*в*с