簡約 ((-12.921x^2-25.842x+4380))/((x+1)^2)-20

解

簡約

\frac{( - 12.921 x ^{2} - 25.842 x + 4380 )}{( x + 1 ) ^{2}} - 20

\frac{- 32.921 x ^{2} - 65.842 x + 4360}{( x + 1 ) ^{2}}

解答ステップ

\frac{- 12.921 x ^{2} - 25.842 x + 4380}{( x + 1 ) ^{2}} - 20

分数の規則を適用する:

a + \frac{b}{c} = \frac{a c + b}{c}

= \frac{- 20 ( x + 1 ) ^{2} - 12.921 x ^{2} - 25.842 x + 4380}{( x + 1 ) ^{2}}

簡素化

- 20 (x + 1)^{2} - 12.921 x^{2} - 25.842 x + 4380 : - 32.921 x^{2} - 65.842 x + 4360

= \frac{- 32.921 x ^{2} - 65.842 x + 4360}{( x + 1 ) ^{2}}