Question

a factor of 5xy – 40x – 15y + 120??

Answer 1

Try factoring by grouping.
\[(5xy - 40x) + (-15y + 120)\]Factor out the GCF of each individual grouping.

Answer 2

9 and 3?

Answer 3

Where did you get that from?

Answer 4

wow nvm I was thinking 45

Answer 5

8 and 3?

Answer 6

from dividing 120 getting 3 and dividing 15 geting also 3??

Answer 7

\[(5xy - 40x) + (-15y + 120) \implies 5x(y - 8) - 15(y - 8)\]Now, remember that using the distributive property, you can do this:
\[a(b + c) - d(b + c) \implies (a - d)(b + c)\]Can you finish it up?

Answer 8

thnx!!

Answer 9

np :) What did you get?