Four polynomials are shown below:
A4 − 7x5 + x2
B5x3 + 5 − 3x4
C3x + 2x4 − x2 + 6
D3x3 − 5 + 2x5 + x
Which of the above polynomials is a 4th degree trinomial?
A4 − 7x5 + x2
B5x3 + 5 − 3x4
C3x + 2x4 − x2 + 6
D3x3 − 5 + 2x5 + x