Thanks, really my bug , found an error - I missed one index

i have the problem with one test case on python
i have this answer y^2-5y-66 but it should be 55y^2-599 y-66
i think it's incorrect case because
My program in case (𝑦−11)(55𝑦+6) got 55y^2-599 y-66
and in case (y-11)(y+6) got y^2-5y-66 and it is correct
Plese check this test case
I've complete all test except this one