化简-2.4(1)+9.6

解答

化简

- 2.4 (1) + 9.6

7.2

求解步骤

- 2.4 (1) + 9.6

- 2.4 (1) = - 2.4

= - 2.4 + 9.6

9.6 - 2.4 = 7.2

= 7.2

s im pl i f y \frac{10}{- i}

5 x^{2} = 45

f a c t or 3 x^{2} - 28 x + 9

5^{2} - 8 x + 19 \geq 0

s im pl i f y \frac{1}{2} \cdot \frac{2 π}{3}