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Factor them.2 x 3 x 3 = 182 x 3 x 5 = 30Combine the factors, eliminating duplicates.2 x 3 x 3 x 5 = 90, the LCM
The GCF of 18 and 3 is 3. If that's 18x3, you need another term to compare it with.
Make them additive for illustrative purposes.
18X3 + 30X5
6X3(3 + 5X2)
6X3
=====greatest common factor
The GCF is 6x3
The GCF is 6x^2
3x
9x2
6
The GCF is 3x
54.By the way, what does what and mean?
The GCF is 6.
The GCF is 9.
The GCF is 4.
6x3
54
Eighteen times three is equal to 54.
2x^3(x - 3)(x + 3)
24x^5 + 24x^3 = 24x^3(x^2 + 1)
18 x 3 = 54
The GCF is 30.