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Question

Question 85 (a)

Evaluate
78×a10b7c1276×a8b4c12

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Solution

We have 78×a10b7c1276×a8b4c12=(7876)×(a10a8)×(b7b4)×(c12c12)=786×a10a×b74×c1212=72×a2×b3×c0=49a2b2


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