Tuesday

July 29, 2014

July 29, 2014

Posted by **Esther** on Thursday, March 10, 2011 at 11:46pm.

(9p^b)/p^2-b^2 - p-b/p+b.

Thank you. These problems, I don't understand at all. I'm sorry.

- Algebra 2-parentheses -
**MathMate**, Friday, March 11, 2011 at 8:37amThe way the expression is typed is probably different from the book for lack of parentheses. When it is type-set, parentheses are not required on the numerator and denominator. When interpreted on one single line, they are required, or else a completely different expression results.

Also, I think 9p^b at the beginning should read 9p^2 (just a guess).

Please check what I assume is the correct interpretation.

(9p^2)/(p^2-b^2) - (p-b)/(p+b)

=(9p^2)/((p+b)(p-b)) - (p-b)²/((p+b)(p-b))

=(9p^2-(p-b)²)/((p+b)(p-b))

=(3p+p-b)(3p-(p-b))/((p+b)(p-b))

=(4p-b)(2p+b)/((p+b)(p-b))

**Related Questions**

Algebra - 1. Subtract and simplify 18/y-8 - 18/8-y 2. subtract simplify if ...

Algebra 2 - Subtract. Simplify by removing a factor of 1 when possible. (10bf)/(...

Algebra 2 - Subtract. Simplify by removing a factor of 1 when possible. (10bf)/(...

HELP - subtract simplify by removing factor of 1 if possible 3bc/b^2-c^2-b-c/b+C

algebra - subtract, simplfy by removing a factor of 1 when possible. 19dc/d^2-c^...

math - I am having a problem solving these problems could you please help me! ...

Algebra - Simplify by removing the factor of 1 y^2-7y+6/ y^2+8y-9 I need to LCD...

Math - The problem is (14ac)-a^2-2ac+b^2) I need to subtract by removing a ...

math - Needing help with these problems lost, subtract. simplify if possible 3/x...

algebra - Simplify by removing the factor of 1 5y -20 / 5y