因式分解x4+7x3+14x2+7x+1;x4-11x2y2+y2

2025-01-14 03:33:39
推荐回答(1个)
回答1:

x4+7x3+14x2+7x+1
=(x²+3x+1)(x²+4x+1)

x4-11x2y2+y2
=(x²-y²)²-(3xy)²
=(x²-y²+3xy)(x²-y²-3xy)