Question

(3x – 2) · (x + 3) – 3x (x + 1) – 3 = 0;​

Answer 1

Ответ:

3x^2+9x-2x-6-3x^2-3x-3=0

4x-9=0

4x=9

x=9/4=2,25

Answer 2

Let's start by simplifying the expression step by step:

(3x – 2) · (x + 3) – 3x (x + 1) – 3 = 0

(3x^2 + 9x - 2x - 6) - (3x^2 + 3x) - 3 = 0 [using FOIL method to expand the first two terms]

(3x^2 + 7x - 6) - 3x^2 - 3x - 3 = 0

(3x^2 - 3x^2) + (7x - 3x) - 6 - 3 = 0

4x - 9 = 0

Adding 9 on both sides, we get:

4x = 9

Dividing by 4 on both sides, we get:

x = 9/4

Therefore, the solution to the given equation is x = 9/4.