Question

In 3x(x – 2) + x(5x – 2) = 6, what are the values of x?

Answer 1

Answer:

x = 3/2 , - 1/2

Step-by-step explanation:

3x (x - 2) + x (5x - 2) = 6

3x² - 6x + 5x² - 2x = 6

8x² - 8x = 6

4x² - 4x = 3

4x² - 4x - 3 = 0

4x² - 6x + 2x - 3 = 0

2x (2x - 3) + 1 (2x - 3) = 0

(2x - 3) (2x + 1) = 0

2x - 3 = 0 Or 2x + 1 = 0

x = 3/2 Or x = - 1/2