因式分解X^4-7X^2+1

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/29 09:30:17
因式分解X^4-7X^2+1

因式分解X^4-7X^2+1
因式分解X^4-7X^2+1

因式分解X^4-7X^2+1
X^4-7X^2+1
=(x²-1)²-5x²
=(x²-1+√5 x)(x²-1-√5 x)

x^4-7x^2+1
=x^4+2x^2+1-9x^2
=(x^2+1)^2-(3x)^2
=(x^2+3x+1)(x^2-3x+1)

x^4-7x^2+1
=x^4+2x^2+1-9x^2
=(x^2+1)^2-(3x)^2
=(x^2+3x+1)(x^2-3x+1)

x^4-7x^2+1=(x^4+2x^2+1)-9x^2=(x^2+1)^2-(3x)^2=(x^2+3x+1)(x^2-3x+1)

x^4-7x^2+1
=x^4+2x^2+1-9x^2
=(x^2+1)^2-(3x)^2
=(x^2+3x+1)(x^2-3x+1)