SOLUTION: How do you factor this polynomial?
27a^3-64b^3+15a-20b
Algebra.Com
Question 166805This question is from textbook Intermediate Algebra
: How do you factor this polynomial?
27a^3-64b^3+15a-20b
This question is from textbook Intermediate Algebra
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
27a^3 - 64b^3 + 15a - 20b
;
Regroup
27a^3 + 15a - 64b^3 - 20b
:
factor out 3a and 4b
3a(9a^2 + 5) - 4b(16b^2 + 5); note the sign change when you factor out -4b
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