Question

Verify: 31 x [7 + (-2)] = [31 x 7] + [31 x (-2)]​

Answer 1

31×[7+(-2)]=[31×7]+[31×(-2)]

LHS=31×[7+(-2)] & RHS=[31×7]+[31×(-2)]

=31×(7-2) =217+(-62)

=31×5 =217-62

=155 =155

So, LHS=RHS(proved)

Hence, 31×[7+(-2)]=[31×7]+[31×(-2)] (proved).

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