ask a maths question

来源：学生作业帮编辑：作业帮分类：数学作业时间：2024/05/18 01:11:20

ask a maths question
在实数范围内分解因式
9x^4-25

9x^4-25
=(3x^2+5)(3x^2-5)
=(3x^2+5)(√3x+√5)(√3x-√5)

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