Question

Identify the GCF of 10x4y3 − 5x3y2 + 20x2y

Answer 1

A 10x2y

B 10x3y

C 5x2

D 5x2y

Answer 2

okay well when it says GCF, it means Greatest Common Factor

what that means is find the biggest term that ALL 3 terms share

you can look at this by variable to variable

so for the coefficients, we have 10, -5, 20. what is the biggest number they all have in common?

for the x's... we have x^4, x^3, x^2. what is the biggest exponent that they all share?

for the y's... we have y^3, y^2, y.... what is the biggest exponent they all share?

Answer 3

D. 5x^2y

Answer 4

thx @ybarrap