: Use the annihilator method to determine the form of a particular solution for the given equation. 0-810 = 7xe 9x Find a differential operator that will annihilate the nonhomogeneity 7x eºx (Type the lowest-order annihilator that contains the minimum number of terms. Type your answer in factored or expanded form.) What is the form of the particular solution? 0(x)=0