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प्रश्न
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
a2x2 + 2abx + b2
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उत्तर
We have,
a2x2 + 2abx + b2
= (ax)2 + 2 × ax × b + b2
= (ax + b)2
= (ax + b)(ax + b)
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