化简 (3t+7)-2(6.3t+4)

解答

化简

(3 t + 7) - 2 (6.3 t + 4)

- 9.6 t - 1

求解步骤

(3 t + 7) - 2 (6.3 t + 4)

使用法则:

(a) = a

(3 t + 7) = 3 t + 7

= 3 t + 7 - 2 (6.3 t + 4)

展开

- 2 (6.3 t + 4) : - 12.6 t - 8

= 3 t + 7 - 12.6 t - 8

对同类项分组

= 3 t - 12.6 t + 7 - 8

f a c t or x^{4} - 5 x^{2} - 14

s im pl i f y 2 - (x - 1)

f (a) = \frac{a ^{\frac{1}{3}} + 1}{a ^{\frac{1}{3}}}

s im pl i f y (\frac{- 2}{5 \cdot x y})^{4}

f a c t or 5 x^{2} + 13 x - 28