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Is $9 x^{2} + 12 x y + 9 y^{2}$ $9x^2 + 12xy + 9y^2$ a perfect square trinomial?

1 Answer

Chitram Banerjee

Apr 19, 2016

No

Explanation:

$9 x^{2} \pm 18 x y + 9 y^{2}$ $9x^2+-18xy+9y^2$ that will be it.

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