(x눀+y눀)눀-4x눀y눀因式分解怎么做?要过程!

2025-06-25 17:08:48
推荐回答(1个)
回答1:

(x²+y²)²-4x²y²
=x^4+y^4+2x²y²-4x²y²
=x^4+y^4-2x²y²
=(x²-y²)²