у = (49x + 59)^2 (31x + 37)^3 (41x + 49)

To simplify this expression, we can expand each term:

у = (2401x^2 + 5788x + 3481) (29791x^3 + 33661x^2 + 11283x + 1369) (41x + 49)

Now, multiply each term:

у = 2401x^2 29791x^3 41x + 2401x^2 29791x^3 49 + 2401x^2 33661x^2 41x + 2401x^2 33661x^2 49 + 2401x^2 11283x 41x + 2401x^2 11283x 49 + 2401x^2 1369 41x + 2401x^2 1369 49 + 5788x 29791x^3 41x + 5788x 29791x^3 49 + 5788x 33661x^2 41x + 5788x 33661x^2 49 + 5788x 11283x 41x + 5788x 11283x 49 + 5788x 1369 41x + 5788x 1369 49 + 3481 29791x^3 41x + 3481 29791x^3 49 + 3481 33661x^2 41x + 3481 33661x^2 49 + 3481 11283x 41x + 3481 11283x 49 + 3481 1369 41x + 3481 1369 49

Simplifying further, we get:

у = 70349631x^6 + 1246442035x^5 + 1560174310x^4 + 1510854584x^3 + 1036285556x^2 + 452156995x + 85380169

Therefore, у = 70349631x^6 + 1246442035x^5 + 1560174310x^4 + 1510854584x^3 + 1036285556x^2 + 452156995x + 85380169