Question

Subtract polynomials
(4x^4+9x^3-7)-(6x^2-3x+5)
helper
(4x^4+9x^3-7)-(6x^2-3x+5)
4x^4 + 9x^3 - 7 - 6x^2 + 3x - 5

4x^4 + 9x^3 - 6x^2 + 3x - 7 - 5
4x^4 + 9x^3 - 6x^2 + 3x - 12