This problem and this question both MAKE NO SENSE.


There are INFINITELY MANY possible answers.


For example, the dimensions can be


    1    and     3x^2 + 5x -2;

    1/2  and  2*(3x^2 + 5x - 2);

    1/3  and  3*(3x^2 + 5x - 2),


and so on . . . 



Or this, different series of expressions


    (3x-1)  and  (x+2)

    (1/2)*(3x-1)  and  2*(x+2)

    (1/3)*(3x-1)  and  3*(x+2)

and so on . . . 


It is a typical example of posing a "quasi-" and "pseudo-" problem/problems, which, actually, make no sense.