How do you find GCF of 8 and 12:
8=2*2*2
12=2*2*3
You look for all possible factors that are common for the two numbers, namely 2*2.
Same for expressions:
35a²=5*7*a*a
85ab = 5*17*a*b
Can you find the GCF now?
How do you find the GCF for numbers that have variable?
ex. 35a^2,85ab
5 answers
Would this be 5*a^3?
No its not.
The factors that are common should be counted only once, like the 5 you counted only once.
a appears twice in the first expression, but only once in the second, so you count the minimum times it occurred, namely once.
So the common factor is 5a.
7, 17, and b do not have common factors in both expressions.
The factors that are common should be counted only once, like the 5 you counted only once.
a appears twice in the first expression, but only once in the second, so you count the minimum times it occurred, namely once.
So the common factor is 5a.
7, 17, and b do not have common factors in both expressions.
Thank you very much.
You're very welcome!
2 answers