How do you factor #-18a ^ { 2} b + 50b#?

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Answer 1 · 2017-11-11T21:45:09

Find GCF and factor it out.

#-18a^2b + 50b#

#-18, 50# have two common factors which is #2# and #b# and a negative.

#-2b(9a^2 - 25)#

as you can see now we have a difference of squares,

#(3a -5)(3a+5) = (9a^2-25)#

-#2b(3a-5)(3a+5)#

The #GCF# is now 1 and nothing can be furthered simplified.

hope this helps!