For polynomial arithmetic with coefficients in Z10, perform the following calculations:(7x+2) - (x^2+ 5) , (6x^2+x+3) x (5x^2+2)

Question

For polynomial arithmetic with coefficients in Z10, perform the following calculations

Answer 1

(7x+2)-(x²+5)=7x+2-x²-5=-x²+7x-3.

(6x²+x+3)×(5x²+2)=

30x⁴+5x³+15x²

              +12x²+2x+6=30x⁴+5x³+27x²+2x+6.

Please clarify what you mean by Z10.