化简 [(3+(6)(3))/3 ]+2(2-5)^2

解答

化简

[\frac{3 + ( 6 ) ( 3 )}{3}] + 2 (2 - 5)^{2}

25

求解步骤

(\frac{3 + ( 6 ) ( 3 )}{3}) + 2 (2 - 5)^{2}

使用法则:

(a) = a

(\frac{3 + ( 6 ) ( 3 )}{3}) = \frac{3 + ( 6 ) ( 3 )}{3}

= \frac{3 + 6 \cdot 3}{3} + 2 (2 - 5)^{2}

\frac{3 + 6 \cdot 3}{3} = 7

2 (2 - 5)^{2} = 18

= 7 + 18

数字相加:

7 + 18 = 25

= 25

x^{2} + 2 x = 10

20 - 1.6 t = 0

s im pl i f y \frac{1 + 3}{1 - 3}

f a c t or 5 x^{2} + 15 x - 20

7 x - 5 (x - 7) = 8 x - 13