Algebra : 5x(8 - x) - 3x(5 - 3x) = - 26 - 2x(7 - 2x) ecuaciones?
Algebra : 5x(8 - x) - 3x(5 - 3x) = - 26 - 2x(7 - 2x) ecuaciones.
Algebra : 5x(8 - x) - 3x(5 - 3x) = - 26 - 2x(7 - 2x) ecuaciones.
En resumen
5x(8 - x) - 3x(5 - 3x) = - 26 - 2x(7 - 2x) 40x - 5x² - 15x + 9x² = - 26 - 14x + 4x 4x² + 25x = - 26 - 10x 4x² + 35x = - 26 4x² + 35x + 26 = 0 2x 13 2x 2 (2x + 2)(2x + 13) = 0 2x + 2 = 0 x = - 1 2x + 13 = 0 x = - 13 2.
5x(8 - x) - 3x(5 - 3x) = - 26 - 2x(7 - 2x)
40x - 5x² - 15x + 9x² = - 26 - 14x + 4x
4x² + 25x = - 26 - 10x
4x² + 35x = - 26
4x² + 35x + 26 = 0
2x 13
2x 2
(2x + 2)(2x + 13) = 0
2x + 2 = 0
x = - 1
2x + 13 = 0
x = - 13 2.