展开 (x^2+20x+1)/((x+1)^2)

解答

展开

\frac{x ^{2} + 20 x + 1}{( x + 1 ) ^{2}}

\frac{x ^{2} + 20 x + 1}{x ^{2} + 2 x + 1}

求解步骤

\frac{x ^{2} + 20 x + 1}{( x + 1 ) ^{2}}

(x + 1)^{2} = x^{2} + 2 x + 1

= \frac{x ^{2} + 20 x + 1}{x ^{2} + 2 x + 1}

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