factories the following using suitable identities x square + 6 x +9 – InterviewSolution

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1.

factories the following using suitable identities x square + 6 x +9

Answer»

x² + 6x + 9

(x)² + 2 × (x) × 3 + 3²

Compare with a² +2ab + b² = (a+b)² we get

(x)² + 2 × (x) × 3 + 3²

= ( x + 3)²

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