因式分解 (9x+10)^2-4x(9x+10)

解答

因式分解

(9 x + 10)^{2} - 4 x (9 x + 10)

5 (9 x + 10) (x + 2)

求解步骤

(9 x + 10)^{2} - 4 x (9 x + 10)

因式分解出通项

(9 x + 10) : (9 x + 10) (5 x + 10)

= (9 x + 10) (5 x + 10)

因式分解

5 x + 10 : 5 (x + 2)

= (9 x + 10) \cdot 5 (x + 2)

= 5 (9 x + 10) (x + 2)

f a c t or 4 m^{2} - 12 m + 9

f a c t or 20 - 9 x - 20 x^{2}

\frac{3}{3 x - 2} < 0

\frac{x - 5}{2} \leq x

s im pl i f y 940