How do you factor #4g ^ { 2} - 40g + 36#?

1 Answer
Mar 22, 2017

Answer:

#(4g-36) (g-1)#

Explanation:

Find factors of #4# that when cross multiplied to the factors of #36# will equal to #-40#.

For example,

#4" " -36#

#1" " -1#

When you cross multiply #-1# and #4# to get #-4#. Then cross multiply #1# and #-36# to get #-36#. Once you add them, you get #-40#.