x^4+81/4因式分解
问题描述:
x^4+81/4因式分解
答
x^4+81/4=x^4+9x²+(9/2)²-9x²
=(x²+9/2)²-(3x)²
=(x²+9/2-3x)(x²+9/2+3x)
答
x^4+81/4
=(x²+9/2)²-9x²
=(x²+9/2)²-(3x)²
=(x²+9/2+3x)(x²+9/2-3x)