What models have you tried? I used local Llama 3.1 to help me with university math.
It seemed capable of solving differential equations and doing LaPlace transform. It did some mistakes during the calculations, like a math professor in a hurry.
What I found best, was getting a solution from Llama, and validating each step using WolframAlpha.
It was the last remaining exam before my deletion from university. I wish I could attend the lectures, but, due to work, it was impossible. Also, my degree is not fully related to my work field. I work as a software developer, and my degree is about electronics engineering. I just need a degree to get promoted.