因式分解 [x+(-2)][x+(-1)]

解答

因式分解

[x + (- 2)] [x + (- 1)]

(x - 2) (x - 1)

求解步骤

(x + (- 2)) (x + (- 1))

去除括号:

(- a) = - a

= (x - 2) (x - 1)

f a c t or + (- 15)

f a c t or cos (10 x + 4 y) sin (10 x + 4 y)

f a c t or - (15)

f (x) = [sin (x) + cos (x)]

f a c t or sin (2 x - 4)