因式分解 12d^2+4d-1

解答

因式分解

12 d^{2} + 4 d - 1

(6 d - 1) (2 d + 1)

求解步骤

12 d^{2} + 4 d - 1

将表达式拆分成组

= (12 d^{2} - 2 d) + (6 d - 1)

从

12 d^{2} - 2 d

分解出因式

2 d

2 d (6 d - 1)

= 2 d (6 d - 1) + (6 d - 1)

因式分解出通项

(6 d - 1) : (6 d - 1) (2 d + 1)

= (6 d - 1) (2 d + 1)

s im pl i f y (7 x^{2} y^{3}) (3 x^{5} y^{8})

f a c t or 128 x^{2} + 96 x y + 18 y^{2}

4 x + 8 = 7.2 + 5 x

f a c t or 9 x^{2} (4 x^{2} - 3) - 4 (4 x^{2} - 3)

\frac{x}{3} > 3 + \frac{10}{3 x}