化简-4.2x-3(2x+0.5)

解答

化简

- 4.2 x - 3 (2 x + 0.5)

- 10.2 x - 1.5

求解步骤

- 4.2 x - 3 (2 x + 0.5)

展开

- 3 (2 x + 0.5) : - 6 x - 1.5

= - 4.2 x - 6 x - 1.5

f a c t or x^{3} - x^{2} + x - 6

\frac{12}{7} \div \frac{9}{28}

s im pl i f y 10 (7 p + 6) - 5 (5 p + 4)

e x p an d (1 - 2 r)^{3}

s im pl i f y - [14 - 3 x - (8 x + 3) - 1 - (x - 2)]