因式分解 4x^2-56x+192

解答

因式分解

4 x^{2} - 56 x + 192

4 (x - 6) (x - 8)

求解步骤

4 x^{2} - 56 x + 192

因式分解出通项

4 : 4 (x^{2} - 14 x + 48)

= 4 (x^{2} - 14 x + 48)

因式分解

x^{2} - 14 x + 48 : (x - 6) (x - 8)

= 4 (x - 6) (x - 8)

1.11 = (1 + \frac{x}{2})^{2}

2 x^{2} - 11 x = 21

5 x + 8 < 2 x + 3

- 5 \leq \frac{x - 3}{3} \leq 1

\frac{7}{3} \cdot (\frac{2}{3} - \frac{2}{9})