For this we almost have an expression of the form:
ax4 + bx3 + cx2
Where, the coefficients are given by the values of a, b, c.
Substituting values we have:
7x4 - 9x3 + 2x2
Therefore, the coefficients are:
a = 7
b = -9
c = 2
Answer:
a = 7
b = -9
c = 2
