因式分解 3u^4-3u^4y^4

解答

因式分解

3 u^{4} - 3 u^{4} y^{4}

- 3 u^{4} (y^{2} + 1) (y + 1) (y - 1)

求解步骤

3 u^{4} - 3 u^{4} y^{4}

因式分解出通项

3 u^{4}

= 3 u^{4} (1 - y^{4})

因式分解

1 - y^{4} : - (y^{2} + 1) (y + 1) (y - 1)

= - 3 u^{4} (y^{2} + 1) (y + 1) (y - 1)

y^{2} + 6 y - 40 = 0

10 x^{2} - 17 x + 3 = 0

\frac{( x - 9 )}{( x - 2 )} > 0

∣ 7 x ∣ \geq 14

∣ x + 1 ∣ + ∣ x - 4 ∣ + ∣ x - 5 ∣ = 26