Question

Find the GCF of 30x^2 and 45x^5

Answer 1

The answer is 15x^2.

Answer 2

To find GCF we need to find what these expressions have in common
30x²=5*3*2x²
45x⁵=5*3*3x²x³

Now we can see, that GCF=5*3*x² = 15x²