Math, asked by farracer1293, 1 year ago

49 x2 +42 xy+9y2

7x+3y

Answers

Answered by liza10987654321

1

$49x {}^{2} + 42xy + 9y {}^{2} \\ \\ = (7x) {}^{2} + 2.7x.3y + (3y) {}^{2} \\ \\ = (7x + 3y) {}^{2}$

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