Wednesday

October 22, 2014

October 22, 2014

Posted by **jennifer** on Sunday, September 21, 2008 at 5:30pm.

Z^2-18Z+81-25x^2

I have tried this one several times and just can't seem to get it.

please help

- intermediate algebra -
**Reiny**, Sunday, September 21, 2008 at 8:17pmthis is a variation of the difference of squares

Z^2-18Z+81-25x^2

= (z-9)^2 - (5x)^2

= (z-9+5x)(z-9-5x)

**Answer this Question**

**Related Questions**

math - factor completely Z^2 - 18Z + 81 - 25x^2

MATH - factor completely z^2-18z+81-25x^2 (z-9)^2-(5x)^2 (z-9+5x)(z-9-5x) am I ...

Pre Calculus - So I only have 3 homework questions left and I can't seem to ...

MATH - z^2-18z+81-25x^2 (z-9)^2 -(5x)^2 (z-9+5x)(z-9-5x) is this factored ...

Algebra - Rewrite the middle term as the sum of two terms and then factor ...

Math - How to divide 150 by 3.6 please tell me with steps I tried it several ...

intermediate algebra - Factor the expression 25x^2- 60xy+36y^2 into a product of...

algebra - The first three equations I have solved, I would just appreciate ...

Algebra - The first three equations I have solved, I would just appreciate ...

Algebra - 18z+45+z^2 (factor) please show steps