TMUA Specimen · Paper 1 · Question 20 · ExamRizz

ExamRizzTMUA

TMUA Specimen · Paper 1 · Question 20

The coefficient of $x^{2}$ in the expansion of $(4 - x^{2}) [(1 + 2 x + 3 x^{2})^{6} - (1 + 4 x^{3})^{5}]$ is