展开 ((5x+9)(x+3))/((x+2)(4x+3))

解答

展开

\frac{( 5 x + 9 ) ( x + 3 )}{( x + 2 ) ( 4 x + 3 )}

\frac{5 x ^{2} + 24 x + 27}{4 x ^{2} + 11 x + 6}

求解步骤

\frac{( 5 x + 9 ) ( x + 3 )}{( x + 2 ) ( 4 x + 3 )}

乘开

(x + 2) (4 x + 3) : 4 x^{2} + 11 x + 6

= \frac{( 5 x + 9 ) ( x + 3 )}{4 x ^{2} + 11 x + 6}

乘开

(5 x + 9) (x + 3) : 5 x^{2} + 24 x + 27

= \frac{5 x ^{2} + 24 x + 27}{4 x ^{2} + 11 x + 6}

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