Question

(x+3)(x - 4)+(3x - 1)(2x+3)=(x - 5)(7x+2)

Answer 1

(x+3)(x - 4)+(3x - 1)(2x+3)=(x - 5)(7x+2)
x² - 4x + 3x - 12 + 6x² + 9x - 2x - 3 = 7x² + 2x - 35x - 10
x² + 6x² - 4x - 2x + 3x + 9x - 12 - 3 = 7x² + 2x - 35x - 10
7x² - 6x + 12x - 15 = 7x² - 33x - 10
7x² + 6x - 15 = 7x² - 33x - 10
7x² - 7x² + 6x + 33x = - 10 + 15
39x = 5
x = 5/39
El valor de x es 5/39