I will award brainliest to whoever correctly answers this!

Answer:
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
Answer :
15x²
Step-by-step explanation:
[tex]30x^{2}=2\times \left( 15x^{2}\right) \\45x^{5}=3x^{3}\times \left( 15x^{2}\right)[/tex]
Then the greatest common factor is 15x²