展开 (2x^2)/((x+2)^2)

解答

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

\frac{2 x ^{2}}{x ^{2} + 4 x + 4}

求解步骤

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

(x + 2)^{2} = x^{2} + 4 x + 4

= \frac{2 x ^{2}}{x ^{2} + 4 x + 4}

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