We have to find the integral of y=3x^2+2x-1.

Now Int [y] = Int [ 3x^2+2x-1]

=> Int [ 3x^2] + Int [ 2x] - Int [1]

=> 3*x^3 / 3 + 2* x^2 / 2 - x + C

=> x^3 + x^2 - x + C

**Therefore the required integral is x^3 + x^2 - x + C**

We have to find the integral of y=3x^2+2x-1.

Now Int [y] = Int [ 3x^2+2x-1]

=> Int [ 3x^2] + Int [ 2x] - Int [1]

=> 3*x^3 / 3 + 2* x^2 / 2 - x + C

=> x^3 + x^2 - x + C

**Therefore the required integral is x^3 + x^2 - x + C**