Sunday

March 1, 2015

March 1, 2015

Posted by **shay** on Thursday, July 21, 2011 at 7:16pm.

49a^2-b^2

---------

7a-b

- algebra -
**bobpursley**, Thursday, July 21, 2011 at 8:34pmfactor the numerator, it is a difference of squares

- algebra -
**shay**, Thursday, July 21, 2011 at 9:03pmplease get into more detail more for me to understand Algebra is one my weakest subjects

- algebra -
**Ms. Sue**, Thursday, July 21, 2011 at 10:00pmThese 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

- algebra -
**shay**, Thursday, July 21, 2011 at 11:38pmplz help me

- Algebra -
**Mithra**, Friday, July 22, 2011 at 8:35amHere 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

**Answer this Question**

**Related Questions**

Intermediate Algebra - Essay: show all work. Find the quotient: 49a^2-b^2/7a-b

intermediate algebra - Essay. Show all work. find the quotient: 49a^2-b^2...

Intermediate Algebra - Show all work. Find the quotient:49a^2-b^2/7a-b

algebra - Essay. Show all work. Find the quotient y^4+3y-1 -------- y^2-3

intermediate algebra - Essay. Show all work. find the quotient: y^4+3y-1...

algebra - Essay. Show all work. Find the following quotient: 36x^2-49y^2...

math - Essay: Show all work. Find the quotient: y^4 + 3y -5 / y^2 + 7

math - Essay: Show all work. Find the quotient: 9a^2 - 100b^2 / 3a - 10b

Intermediate Algebra - Show all work. Find the quotient:6x^3-x^2-7x-9/2x+3

algebra - Essay: Show all work. Find the following product. (x^2+7)(x^3-x7)