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Question

Evaluate:

(i)(53)2×(53)2

(ii)(56)6×(56)4

(iii)(23)3×(23)2

(iv)(98)3×(98)2

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Solution

(i)(53)2×(53)2=(53)2+2=(53)4

=53×53×53×53=62581

(ii)(56)6×(56)4=(56)64=(56)2

=56×56=2536(iii)(23)3×(23)2=(32)3×(32)2

=(32)3+2=(32)5=32×32×32×32×32

=24332

(iv)(98)3×(98)2=(98)3+2=(98)1

=89


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