Question

1/6a ×8b²×3/4ba³ при a＝－2 b＝1/2

Answer 1

$frac{1}{6} times 8b times frac{3}{4} ba {}^{3} = frac{1}{2} a times 2b times ba {}^{3} = ab {}^{2} times ba {}^{3} = a {}^{4}b {}^{3}$
подставляемые заданные числа
a = -2
b = 1/2
$( - 2) {}^{4} times (frac{1}{2}) {}^{3} = - 2 {}^{4} times 2 {}^{ - 3} = - 2$