Apply the fraction rule $\frac{a}{c}-\frac{b}{c}=\frac{a-b}{c}$
$=\frac{x(x-1)-3(x+1)}{(x+1)(x-1)^{2}}$
Simplify $x(x-1)-3(x+1):{\quad}x^{2}-4x-3$
$=\frac{x^{2}-4x-3}{(x+1)(x-1)^{2}}$
Frequently asked questions (FAQs)
What is the value of f(x) at x = 10 for the logarithmic function f(x) = log x, where log denotes log base 10?
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Which rule states that if two sides and the included angle of one triangle are congruent to the corresponding parts of another triangle, then the triangles are congruent?
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What is the derivative of the function f(x) = 2x^3 - 6x^2 + 5x - 2?