find a constant to add to the binomial so that it becomes a perfect square trinomial. x^2-15x
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Originally Posted by geryuu find a constant to add to the binomial so that it becomes a perfect square trinomial. x^2-15x Divide the coefficient of the linear term by 2 (ie divide b by 2) --------------------------------------------------------------------- More generally for (we can divide by a because it must be non-zero) That second term in the fraction is the constant
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