[ 3.0x^5 + 2.0x^3 - 2.0 ] 110.0 The product of the polynomials: [ 3.0x^5 + 2.0x^3 - 2.0 ] and [ 5.0x^7 + 3.0x^2 + 2.0x + 2.5 ] is: [ 15.0x^12 + 10.0x^10 - x^7 + 6.0x^6 + 13.5x^5 + 4.0x^4 + 5.0x^3 - 6.0x^2 - 4.0x - 5.0 ] The sum of the polynomials: [ 3.0x^5 + 2.0x^3 - 2.0 ] and: [ 5.0x^7 + 3.0x^2 + 2.0x + 2.5 ] is: [ 5.0x^7 + 3.0x^5 + 2.0x^3 + 3.0x^2 + 2.0x + 0.5 ]