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Verify the following:(a) 18xx[7+(-3)]=[...

Verify the following:(a) `18xx[7+(-3)]=[18xx7]+[18xx(-3)]` (b) `(-21)xx[(-4)+(-6)]=[(-21)xx(-4)]+[(-21)xx(-6)]`

Text Solution

Verified by Experts

a)LHS=18*(7+(-3))=18*(7-3)=18*(4)=72
RHS=(18*7)+(18*(-3))=126-54=72
LHS=RHS
b)LHS=(-21)*((-4)+(-6))=(-21)*(-10)=210
RHS=((-21)*(-4))+((-21)*(-6))=84+126=210
LHS=RHS.
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