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Factor the difference of squares $x^2-49$ as the product of two conjugated binomials
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$\frac{x+7}{\left(x+7\right)\left(x-7\right)}$
Learn how to solve problems step by step online. Find the limit (x)->(-7)lim((x+7)/(x^2-49)). Factor the difference of squares x^2-49 as the product of two conjugated binomials. Simplify the fraction . Multiply -1 times 7. Evaluate the limit \lim_{x\to-7}\left(\frac{1}{x-7}\right) by replacing all occurrences of x by -7.