Is 4m2 – 12mn – 9n 2 a perfect square trinomial? If not, what changes will you need to make in the given expression so that it is a perfect square trinomial.
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Hey mate understand this
(x + 3)2
= (x + 3)(x + 3)
= x2 + 6x + 9
...so x2 + 6x + 9 is a perfect square trinomial.
Hope it helps you
Mark me brainliast
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