Question

Simplificar -3x^2-{-[4x^2+5x-(x^2-x+6)]}

Answer 1

Respuesta:

$= - 3x {}^{2} - ( - (4x {}^{2} + 5x - (x {}^{2} - x + 6))) \\ = - 3x {}^{2} - ( - (4x {}^{2} + 5x - x {}^{2} + x - 6)) \\ = - 3x {}^{2} - ( - (3 {x}^{2} + 6x - 6)) \\ = - 3x {}^{2} + 3x {}^{2} + 6x - 6 \\ = 6x + 6 \\ = 6(x + 1)$