Determine the constant that should be added to the binomial so that it becomes a perfect square trinomial. ​ Then, write and factor the trinomial.   x2-4x What is the constant that should be added to the binomial so that it becomes a perfect square​ trinomial?

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Q: 2x-5x + 3

A: here we factorize the given trinomial.

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Polynomials

Try substituting 1. You will get 6 and not 0. Try other real values also. What About -2? Let us check.