因式分解 18x^2-50

解答

因式分解

18 x^{2} - 50

2 (3 x + 5) (3 x - 5)

求解步骤

18 x^{2} - 50

因式分解出通项

2 : 2 (9 x^{2} - 25)

= 2 (9 x^{2} - 25)

因式分解

9 x^{2} - 25 : (3 x + 5) (3 x - 5)

= 2 (3 x + 5) (3 x - 5)

f a c t or 3 a x + 8 b - 6 b x - 4 a

3 (x + 2) + 2 x = 7 (x - 1) + 9

7 x - 11 - 4 x = 6

f a c t or 27 + 8 x^{3}

f a c t or k^{3} + 7 k^{2} - 44 k