Final Answer
Step-by-step Solution
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Add and subtract $\displaystyle\left(\frac{b}{2a}\right)^2$
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$\frac{x^2-1}{x^2+2x+1+1-1}$
Learn how to solve problems step by step online. Factor by completing the square (x^2-1)/(x^2+2x+1). Add and subtract \displaystyle\left(\frac{b}{2a}\right)^2. Factor the perfect square trinomial x^2+2x+1. Subtract the values 1 and -1. Factor the difference of squares x^2-1 as the product of two conjugated binomials.