Question

2a²× (-5a²b)× (-4ab²)
please helppp it's urgent ​

Answer 1

$2a²× (-5a²b)× (-4ab²)$

$2{a}^{2}\times -5{a}^{2}b\times -4a{b}^{2}$

$(2\times -5\times -4){a}^{2}{a}^{2}ab{b}^{2}$

$(-10\times -4){a}^{2}{a}^{2}ab{b}^{2}$

$40{a}^{2}{a}^{2}ab{b}^{2}$

$40{a}^{2+2+1}{b}^{1+2}$

$40{a}^{4+1}{b}^{1+2}$

$40{a}^{5}{b}^{1+2}$

$40{a}^{5}{b}^{3}$