Question

(-10m2n6 ) × (-20mn15) for m =1.2 and n=-1 algebraic expression

Answer 1

$\boxed{\boxed{\boxed{\bold{\green{Solution :\longrightarrow}}}}}$

$\bold{Given,}$

$\bold{m = 1.2 }\\ \\ \bold{n = - 1}$

$\bold{Now \: \: \: \ \: \: \: th e \: \: \: \: \: \: value \: \ \: \: of} \: \: \\\bold{ ( - 10 {m}^{2} {n}^{6} ) \times ( - 20m {n}^{15} )} \\ \\ \bold{= - 10 \times 1.2 {}^{2} \times { (- 1})^{6} \times - 20 \times 1.2 \times {( - 1)}^{15}}$

$\bold{ = - 10 \times 1.44 \times 1 \times (- 20 )\times 1.2 \times ( - 1)} \\ \\ \bold{= 14.4 \times 24} \\ \\ \bold{= 345.6}$