如果 <img src="https://storage.tutusouti.com/pzst/question_bank/res/b1/f9/b1f937b1db5451251d3e207ed0994e61f96aeec6.jpg?x-oss-process=image/sharpen,200"/>，则<img src="https://storage.tutusouti.com/pzst/question_bank/res/42/9b/429b76b65f6c194f5441dd5ec533f5eceb8c4708.jpg?x-oss-process=image/sharpen,200"/>是<img src="https://storage.tutusouti.com/pzst/question_bank/res/25/17/2517d26beea62153f4083f4f1252d4ade34e4317.jpg?x-oss-process=image/sharpen,200"/>的（）重根。