Question

0.3(-2)⁴+0.5(-2)³-38

Answer 1

0.3(-2)⁴+0.5(-2)³-38 = (-2)^3*(0.3*(-2)+0.5 *1) - 38 = (-8)*(-0.6+0.5)-38=(-8)*(-0.1)-38==0.8-38=-37.2 
Ответ: -37,2
.