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Question

Find and correct the errors in the mathematical statement a-4a-2=a2-8


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Solution

Verify if the mathematical statement holds true and make appropriate changes where necessary

L.H.S=a-4a-2

=a2-4a-2a+8

L.H.S=a2-6a+8

But R.H.S=a2-8

Hence, L.H.SR.H.S

-6a is missing in RHS

The correct mathematical statement is a-4a-2=a2-6a+8.


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