因式分解 2m^4+m^3-8m^2-m

解答

因式分解

2 m^{4} + m^{3} - 8 m^{2} - m

m (2 m^{3} + m^{2} - 8 m - 1)

求解步骤

2 m^{4} + m^{3} - 8 m^{2} - m

使用指数法则:

a^{b + c} = a^{b} a^{c}

m^{2} = mm

= 2 m^{3} m + m^{2} m - 8 mm - m

因式分解出通项

m

= m (2 m^{3} + m^{2} - 8 m - 1)

(x - 1)^{2} - 7 < (x - 2)^{2}

4 \geq k + 3

- 2 < x \leq 6

s im pl i f y (\frac{x ^{6}}{y ^{- 4}})^{- 2}

f a c t or - 4 x^{2} + 4 x + 24