(x - 2) (x + 1) - (x - 1) (x + 3) = 5x + 2ecuaciones de primer gradoo ayuda?
(x - 2) (x + 1) - (x - 1) (x + 3) = 5x + 2 ecuaciones de primer gradoo ayuda.
(x - 2) (x + 1) - (x - 1) (x + 3) = 5x + 2 ecuaciones de primer gradoo ayuda.
En resumen
(x - 2) (x + 1) - (x - 1) (x + 3) = 5x + 2 (x ^ 2 + x - 2x - 2) - ( x ^ 2 + 3x - x - 3) = 5x + 2 x ^ 2 - x - 2 - (x ^ 2 + 2x - 3) = 5x + 2 x ^ 2 - x - 2 - x ^ 2 - 2x + 3 = 5x + 2 - 3x + 1 = 5x + 2 1 - 2 = 5x + 3x - 1 = 8x - 1 / 8 = x.
(x - 2) (x + 1) - (x - 1) (x + 3) = 5x + 2
(x ^ 2 + x - 2x - 2) - ( x ^ 2 + 3x - x - 3) = 5x + 2 x ^ 2 - x - 2 - (x ^ 2 + 2x - 3) = 5x + 2 x ^ 2 - x - 2 - x ^ 2 - 2x + 3 = 5x + 2 - 3x + 1 = 5x + 2 1 - 2 = 5x + 3x - 1 = 8x - 1 / 8 = x.