4 3 -8-(-1)

-8 × (-1 3/2)⁴ = -8 × (-5/2)⁴ = -8 × (-5/2) × (-5/2) × (-5/2) × (-5/2) = -8 × 625/16 = -1 × 625/2 = -312,5

Ответ: -312,5