Question

e) 7x2 - 4x = x2 + 2

Answer 1

Respuesta:

x = -1/3

x = 1

Explicación paso a paso:

7x² - 4x = x² + 2

7x² - 4x - x² - 2 = 0

7x² - 4x - x² - 2 = 0

6x² - 4x - 2 = 0

(3x + 1)  (2x -  2) = 0

(3x + 1) = 0       3x = -1     x = -1/3

(2x - 2) = 0       2x = 2     x = 2/2   x = 1