3x2
The least common denominator is 3x.
3x - 3
It is not possible to give a sensible answer to this question. The least common denominator (LCD) refers to a multiple that is COMMON to two or more numbers. You have only one number in the question! 4x - 3 - 1x = 3x - 3.
1
3x2 has x, x2 , and 3 as factors. 2x-5 does not have any of those as factors. So the greatest common factor is 1. If you were adding rational expressions with those two expressions in the denominator, you would need to multiply them together to find the least common denominator.
Their product.
Numerator = 7x + 14 = 7*(x + 2) Denominator = 3x + 6y + nx + 2ny = 2*(x + 2y) + n*(x + 2y) = (x + 2y)*(2 + n) There are no common factors between the numerator and denominator and so the expression cannot be simplified.
3X + 8You don't factor this as there are no common factors.
6x
6xy
3x
3