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

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

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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Chapter 14: Factorisation - Exercise 14.4 [Page 229]

Chapter 14 Factorisation
Exercise 14.4 | Q 14 | Page 229

Find and correct the errors in the statement: 2x + 3y = 5xy

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x² + 5x + 4 gives (−3)² + 5 (−3) + 4 = 9 + 2 + 4 = 15

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x² − 5x + 4 gives (−3)² − 5 (−3) + 4 = 9 − 15 + 4 = −2

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Identify the errors and correct them

(x – 2)(x + 3) = x² – 6