化简 (7.8)(-9.11)

解答

化简

(7.8) (- 9.11)

- 71.058

求解步骤

(7.8) (- 9.11)

使用法则:

(a) = a

(7.8) = 7.8

= 7.8 (- 9.11)

数字相乘:

7.8 (- 9.11) = - 71.058

= - 71.058

cr i t i c a l f (x) = (x + 4) (x - 2)^{2}

s l o p e in t erce pt 2 x + 2 y = 11

in v erse y = 3 x^{2} - 5

d i s t an ce (- 3.1, - 2.8), (- 4.92, - 3.3)

d o main f (x) = 5 (x + 4)^{2} - 1