Asked by shay

Essay. Show all work. Find the quotient.

49a^2-b^2
---------
7a-b
Answered by bobpursley
factor the numerator, it is a difference of squares
Answered by shay
please get into more detail more for me to understand Algebra is one my weakest subjects
Answered by Ms. Sue
These sites will help you understand this problem and its solution.

http://www.purplemath.com/modules/factquad.htm

http://www.purplemath.com/modules/specfact.htm

http://www.youtube.com/watch?v=wvFr1BqU4g8

Answered by shay
plz help me
Answered by Mithra
Here is an example:

9x^2 - 25y^2
------------
3x - 5y


Factor the numerator, its a difference of perfect squares.

9x^2 - 25y^2 = (3x - 5y) (3x + 5y)


(3x - 5y)(3x + 5y)

(3x)(3x) = 9x^2

(3x)(5y) = 15xy

(-5y)(3x)= -15xy

(-5y)(5y)= -25y^2

9x^2 + 15xy - 15xy -25y^2

9x^2 -25y^2 = (3x - 5y)(3x + 5y)
---------------------------------



9x^2 - 25y (3x - 5y)(3x +5y)
---------- = ---------------- = 3x +5y
3x - 5y 3x - 5y






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