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find and correct the errors in the following mathematical statements ( a-4) (a- 2)=a^ 2 - 8

 

Find and correct the errors in the following mathematical statements.

Q15)

(a - 4 ) ( a - 2 )= a ^2 - 8

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Our L.H.S. is (a - 2) (a - 4)
                     = a^{2} - 4a - 2a + 8
                     = a^{2} - 6a+ 8  \neq  R.H.S.
Correct statement is  (a - 2) (a - 4)  =  a^{2} - 6a+ 8

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