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

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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 (a − 4) (a − 2) = a² − 6a + 8

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

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

(a + 4) (a + 2) = a^{2} + 8

(a + 4) (a + 2) = a^{2} + 8

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

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