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प्रश्न
Factorize each of the following algebraic expressions:
x2 + 9y2 − 6xy − 25a2
उत्तर
We have,
x2 + 9y2 - 6xy - 25a2
(x - 3y)2 - (5a)2
By using the formula (a2 - b2) = (a + b) (a - b)
(x - 3y + 5a) (x - 3y - 5a)
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