Question

Find the sum of the polynomials. (3x3 + 4x2 - 2x + 1) + (x4 - x3 + 5x2 + 2x + 3) A. x4 + 2x3 + 9x2 - 4x + 4 B. x4 + 4x3 + 9x2 + 4 C. x4 + 2x3 + 9x2 + 4x + 4 D. x4 + 2x3 + 9x2 + 4

Answer 1

`3 x^(3) + 4 x^(2) -2x + 1 + x^(4) - x^(3) + 5 x^(2) + 2x +3 = x^(4) +2 x^(3) + 9 x^(2) + 4`

Hence, the answer is D.