因式分解 (6x-x^2)+2

解答

因式分解

(6 x - x^{2}) + 2

- (x - 3 - 11) (x - 3 + 11)

求解步骤

(6 x - x^{2}) + 2

去除括号:

(a) = a

= 6 x - x^{2} + 2

因式分解出通项

- 1

= - (x^{2} - 6 x - 2)

分解

x^{2} - 6 x - 2 : (x - 3 - 11) (x + - 3 + 11)

= - (x - 3 - 11) (x + - 3 + 11)

f a c t or 11 + (- 5)

f a c t or (2 x)^{2}

f a c t or b + \frac{2}{3} \cdot 3

f a c t or - x + (- 8)

f a c t or 13 p q^{2} - 20 y pq + 13 rs q - 20 yrs