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प्रश्न
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
25ax2 – 25a
योग
उत्तर
We have,
25ax2 – 25a = 25a(x2 – 12)
= 25a(x – 1)(x + 1)
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अध्याय 7: Algebraic Expression, Identities and Factorisation - Exercise [पृष्ठ २३५]
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