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Factorization of a Quadratic Trinomial

Question 2iFa...

Question

Question 2(i)
Factorise
$4 p^{2} - 9 q^{2}$

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Solution

$4 p^{2} - 9 q^{2} = [(2 p)^{2} - (3 q)^{2}] = (2 p + 3 q) (2 p - 3 q) [U s i n g t h e i d e n t i t y a^{2} - b^{2} = (a - b) (a + b)]$

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Factorization of a Quadratic Trinomial

Standard VIII Mathematics

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