hwo to do things like 6a - 18b please help!!!
2007-07-18 11:24:20 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Look for the greatest factor both terms have in common. In this case the variables are not like. So consider only the coefficients 6 , 18
The GCF of 6 and 18 is 6, therefore factor out a 6
6( a - 3b)
2007-07-18 11:29:23 · answer #1 · answered by ktm 3 · 0⤊ 0⤋
Just look for a common factor. Since 18 = 6*3, 6 is the only common factor. Hence we take the 6 out and in parentheses
put a-3b. So 6(a-3b) = 6a -18b.
take a slightly mor complicated one:
10a^2b^2 - 5ab
Here the common factor is 5ab so 5ab(2ab-1)=5a^2b^2-5ab
2007-07-18 11:37:02 · answer #2 · answered by ironduke8159 7 · 1⤊ 0⤋
6a - 18b
We can write the above as
6a - 6*3 b
now take out the common value
= 6 (a - 3b)
2007-07-18 11:32:24 · answer #3 · answered by Sam 3 · 0⤊ 0⤋
The most important rule is to look for a GCF (greatest common factor) You do that before you try any other type of factoring. In your case it would be the GCF which is 6(a-3b)
2007-07-18 11:33:33 · answer #4 · answered by tweetbd88 1 · 0⤊ 1⤋
6*a - 18*b
= 6*(a - 3*b)
Notice how I simply divided each term by 6, and simultaneously multiplied the entire expression by 6, outside the parentheses.
2007-07-18 11:28:55 · answer #5 · answered by lithiumdeuteride 7 · 0⤊ 0⤋
GCF = 6
6 (a - 3b)
2007-07-18 11:27:33 · answer #6 · answered by gfulton57 4 · 0⤊ 1⤋
6(a-3b)
2007-07-18 11:32:43 · answer #7 · answered by starcraftruinedmylife 3 · 0⤊ 0⤋