Enter the polynomial in standard form. then enter the leading coefficient 4x -30x^3 -3x^2
the standard form is _ and the leading coefficient is _

Okay I'm going to give you an example and steps so you know how to do this 

1+2x^2-4-x^2+x
Subtract 4 from 1 to get -3
2x^2-3-x^2+x
Subract x^2 from 2x^2 to get x^2
X^2-3+x
Move -3
x^2+x-3