Question

2m n - 4m³ m³ - m, m=-1, n=2
-3x y⁴ + 2x² y-xy, x=-2, y=1

Answer 1

Resposta:

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Answer 2

Explicação passo-a-passo:

2 × m × n - 4 × m³ × m³ - m

m = -1; n = 2

2 × (-1) × 2 - 4 × (-1)³ × (-1)³ - (-1) = (-2) × 2 - 4 × (-1) × (-1) + 1 = -4 + 4 × (-1) + 1 = -4 - 4 + 1 = -8 + 1 = -7

-3 × x × y⁴ + 2 × x² × y - x × y

x = -2; y = 1

-3 × (-2) × 1⁴ + 2 × (-2)² × 1 - (-2) × 1 = 6 × 1 + 2 × 4 × 1 + 2 × 1 = 6 + 8 + 2 = 14 + 2 = 16