Question

пожалуйста очень срочно

Answer 1

$1)0.72 \times {a}^{2} \times {b}^{3} = 0.75 \times {2 \times ( - 3)}^{3} = 0.75 \times 4 \times ( - 27) = - 81$

$2)4 \times {a}^{2} \times {b}^{8} = 4 \times {2.5}^{2} \times {( - 1)}^{8} = 4 \times 6.25 \times 1 = 25$