Answer: 6(3x + 4y)
1. Find the GCF (the largest number that goes into both 18x AND 24y). This would be 6.
2. Factor out the 6 by dividing each of the terms by the GCF
18x/6 = 3x
24y/6 = 4y
3. Write as a factored expression
6(3x + 4y)
Problem

Solution
For this case we want to find the domain for this case and we can analyze the denominator on this case because cannot be equal to 0, so we can set up this:

If we factorize we got:
(X-3)(x+2)=0
So then we have X=3 and X=-2
With these results we can conclude that the value of x cannot be 3 or -2 because then the function will be not defined
And the best solution is:
A. all real numbers except -2 and 3
Universe
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You are tackling a trigonometry question here. I recommend remembering the functions and drawing the triangle out.
120 divided by five is 24. That times three is 72. That minus 15 is 57. So yes you could and you would have extra