Question

|4la a3a-8la a2a |×|9la a4a -8 la a12a |=?

Answer 1

$| {4}^{3} - {8}^{2} | \times | {9}^{4} - {8}^{12} | = \\ \\ | {2}^{6} - {2}^{6} | \times ( {8}^{12} - {9}^{4}) = \\ \\ |0| \times ( {8}^{12} - {9}^{4}) = \\ \\ 0( {8}^{12} - {9}^{4}) = \\ \\ 0$