Hello from MrBillDoesMath!
Answer:
4x^4 - 2x^3 + 4x^2 -2x + ( +\-7 + 1)
See Discussion for meaning of "+\-" symbol above
Discussion:
** The first polynomial (10x^4-2x 7) is missing an operand between 2x and 7. I have indicated it below by using (+\_), meaning I don't know what you wanted.**
(10x^4-2x +\- 7)-(6x^4+2x^3-4x^2-1) => combine like terms
(10x^4 - 6x^4) - (2x^3) - (-4x^2) + (-2x) + ( +\-7 +1) =
4x^4 - 2x^3 + 4x^2 -2x + ( +\-7 + 1)
Thank you,
MrB
