因式分解,(x²-5）²-16x²_数学解答

因式分解,(x²-5）²-16x²

人气：187 ℃　时间：2020-04-04 18:09:40

解答

(x²-5）²-16x²
=[(x^2-5)+4x][(x^2-5)-4x]
=(x^2+4x-5)(x^2-4x-5)
=(x+5)(x-1)(x-5)(x+1)