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Find and Correct the Errors in the Statement: (A − 4) (A − 2) = Asquare2 − 8 - Mathematics

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Question

Find and correct the errors in the statement: (a − 4) (− 2) = a2 − 8

Solution

L.H.S. = (a − 4) (a − 2) = (a)2 + [(− 4) + (− 2)] (a) + (− 4) (− 2)

a2 − 6a + 8 ≠ R.H.S.

The correct statement is (− 4) (a − 2) = a2 − 6a + 8

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APPEARS IN

 NCERT Solution for Mathematics Textbook for Class 8 (2018 (Latest))
Chapter 14: Factorisation
Ex. 14.4 | Q: 15 | Page no. 229
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Find and Correct the Errors in the Statement: (A − 4) (A − 2) = Asquare2 − 8 Concept: Concept of Find the Error.
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