[tex]4x^5y^3+8x^4y^4+4x^3y^2[/tex]
GCF is the greatest common factor
We take GCF of numbers first and then we take GCF for variables
GCF of 4, 8, 4 is 4 because all the numbers are divisible by 4
For variable, lowest exponent is our GCF
GCF of [tex]x^5+x^4+x^3[/tex] is x^3
GCF of [tex]y^3+y^4+y^2[/tex] is y^2
So GCF is 4x^3y^2
