Question 14
Find and correct the errors in the statement: $(a + 4) (a + 2) = a^{2} + 8$

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Solution

$L . H . S = (a + 4) (a + 2) = (a)^{2} + (4 + 2) (a) + 4 \times 2 = a^{2} + 6 a + 8 \neq R . H . S T h e c o r r e c t s t a t e m e n t i s (a + 4) (a + 2) = a^{2} + 6 a + 8$

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