Step-by-step explanation:
[tex]6 {x}^{2} - 5x + 2 - 2 {x}^{4} + 3 {x}^{2} - 2= \\ = - 2 {x}^{4} + 9 {x}^{2} - 5x [/tex]
Answer:
c. g-f(x) -2x⁴+9x²-5x
that is the best answer