展开 (5(3t+440))/(44)

解答

展开

\frac{5 ( 3 t + 440 )}{44}

\frac{15 t}{44} + 50

求解步骤

\frac{5 ( 3 t + 440 )}{44}

乘开

5 (3 t + 440) : 15 t + 2200

= \frac{15 t + 2200}{44}

使用分式法则:

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

\frac{15 t + 2200}{44} = \frac{15 t}{44} + \frac{2200}{44}

= \frac{15 t}{44} + \frac{2200}{44}

数字相除:

\frac{2200}{44} = 50

= \frac{15 t}{44} + 50

s im pl i f y a^{2} x^{2} + (\frac{1}{a} - a^{3}) x - 1

e x p an d x^{2} y^{''} (x) + x y^{'} (x) + (x^{2} - 4) y

e x p an d \frac{n ^{2} ( 4 ^{n} )}{( n + 1 ) ( n + 2 )}

e x p an d - 4 (= 2 p + 10)

e x p an d \frac{1}{s ^{2} ( s ^{2} - a )}