SOLUTION: Factor the expression, if possible: 81 a 4 b - b 5 Please enter "prime ", if the expression cannot be factored. th 4 next to the "a" is to the power of 4, and so is the 5 ne

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Factor the expression, if possible: 81 a 4 b - b 5 Please enter "prime ", if the expression cannot be factored. th 4 next to the "a" is to the power of 4, and so is the 5 ne      Log On


   

Question 103761This question is from textbook beginning and intermediate algebra
: Factor the expression, if possible:
81 a 4 b - b 5
Please enter "prime ", if the expression cannot be factored.
th 4 next to the "a" is to the power of 4, and so is the 5 next to the "b" its to the power of 5 This question is from textbook beginning and intermediate algebra

Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
a^4b-b^5
=b(a^4-b^4)
=b(a^2+b^2)(a^2-b^2)
=b(a^2+b^2)(a+b)(a-b)
Ed