what number should be added to the expression x squared+2x to change it into a perfect square trinomial?
2 answers:
The perfect square trinomial (x + 1)² equals x² + 2x + 1 Therefore the answer is to add 1 to the expression. Good luck
You know that a perfect square trinomial is given by square of first term, twice the product of first and last terms and square of second term So we have x^2 that is square of x, 2x that is twice the product of x*1, the second term shoulf be 1, that is square of 1 So your answer would be 1 If you try (x+1)^2 = x^2+2x+1
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