Integrale definite!!
Urgent!

∫²₋₁ (x-1) dx = ∫²₋₁ (x )dx - ∫²₋₁ 1 dx = (x²/2 - x )|²₋₁ = (4/2 - 2) - (1/2 +1 ) = 2-2 - 1/2 -1 = -1/2 - 1 = -1/2 - 2/2 = -3/2