因式分解:x^2+5y^2 (在复数范围内)
问题描述:
因式分解:x^2+5y^2 (在复数范围内)
答
x^2+5y^2
=(x-√5iy)(x+√5iy)
答
x^2+5y^2
=(x+√5yi)(x-√5yi)
答
x²+5y²
=x²-5i²y²
=(x-√5iy)(x+√5iy)