Let's expand and simplify the equation:
(х - 3)(3х + 1) - (2х + 3)(4х - 1)
First, expand the terms:
3х^2 + х - 9х - 3 - (8х^2 - 2х + 12х - 3)
Now, simplify the equation:
3х^2 + х - 9х - 3 - 8х^2 + 2х - 12х + 3
Combine like terms:
-5х^2 - 18x
Therefore, (х - 3)(3х + 1) - (2х + 3)(4х - 1) simplifies to -5х^2 - 18x, not equal to x.
Let's expand and simplify the equation:
(х - 3)(3х + 1) - (2х + 3)(4х - 1)
First, expand the terms:
3х^2 + х - 9х - 3 - (8х^2 - 2х + 12х - 3)
Now, simplify the equation:
3х^2 + х - 9х - 3 - 8х^2 + 2х - 12х + 3
Combine like terms:
-5х^2 - 18x
Therefore, (х - 3)(3х + 1) - (2х + 3)(4х - 1) simplifies to -5х^2 - 18x, not equal to x.