Question

factorize the folloeing expressions using suitable agebraic identity
${y}^{2} + 6y + 9$
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Answer 1

Answer:

$\tt {y}^{2} + 6y + 9 \\ \tt= {y}^{2} + 2 \times y \times 3 + {3}^{2} \\ \tt= {(y + 3)}^{2} \\ \tt= (y + 3)(y + 3)$