Answer:
[tex]\pmb{3x^4-3x^3-3x^2+2x+2 }[/tex]
we have to subtract 5×⁴-4׳+3ײ-2×from 8×⁴-7׳+2
[tex]8x^4-7x^3+2-(5x^4-4x^3+3x^2-2x)\\\\8x^4-7x^3+2-5x^4+4x^3-3x^2+2x\\\\3x^4-3x^3-3x^2+2x+2[/tex]
