因式分解 12x^2-2x-2

解答

因式分解

12 x^{2} - 2 x - 2

2 (3 x + 1) (2 x - 1)

求解步骤

12 x^{2} - 2 x - 2

因式分解出通项

2 : 2 (6 x^{2} - x - 1)

= 2 (6 x^{2} - x - 1)

因式分解

6 x^{2} - x - 1 : (3 x + 1) (2 x - 1)

= 2 (3 x + 1) (2 x - 1)

1 5^{2} + b^{2} = 1 7^{2}

x^{2} - 7 x - 78 = 0

f a c t or m^{2} + m - 6

s im pl i f y 4 \frac{405 x ^{3} y ^{3}}{5 x ^{- 1} y}

3 (x) + (14 - x) = 2 \cdot x (2 x - 21)