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\frac{8x}{x^{2}-49}
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\frac{8x}{x^{2}-49}
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\frac{8x}{x^{2}-7^{2}}
Consider \left(x-7\right)\left(x+7\right). Multiplication can be transformed into difference of squares using the rule: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}.
\frac{8x}{x^{2}-49}
Calculate 7 to the power of 2 and get 49.
\frac{8x}{x^{2}-7^{2}}
Consider \left(x-7\right)\left(x+7\right). Multiplication can be transformed into difference of squares using the rule: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}.
\frac{8x}{x^{2}-49}
Calculate 7 to the power of 2 and get 49.
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