SOLUTION: what is the greastest commonn fator of 24 and 72 and also what is the answer to this 7a+16+(-4a)+(-4a) i tryed many times and its never the right answer i get -a + 16

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Question 91233This question is from textbook
: what is the greastest commonn fator of 24 and 72 and also what is
the answer to this 7a+16+(-4a)+(-4a) i tryed many times and its never the right answer i get -a + 16
This question is from textbook

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
what is the greatest common factor of 24 and 72
24 = (2^3)*3
72 = (2^3)*(3^2)
The gcf is each prime raised to the lowest power present in either number:
Your gcf is 2^3 * 3 = 24
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what is the answer to this 7a+16+(-4a)+(-4a)
= 7a + 16 -8a
=-a + 16
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Cheers,
Stan H.