SOLUTION: Please help!! Multiply and Simplify 64c^2 * 2c-6 ----------- ---- 2c^2-12c+18 8c Subtract and simplify if possible 7-y - 8y-9 --- ---- y-9 9-y

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Please help!! Multiply and Simplify 64c^2 * 2c-6 ----------- ---- 2c^2-12c+18 8c Subtract and simplify if possible 7-y - 8y-9 --- ---- y-9 9-y      Log On


   



Question 237903: Please help!!
Multiply and Simplify
64c^2 * 2c-6
----------- ----
2c^2-12c+18 8c
Subtract and simplify if possible
7-y - 8y-9
--- ----
y-9 9-y

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Multiply and Simplify
64c^2 * 2c-6
----------- ----
2c^2-12c+18 8c
------------------------------------
Reduce where you can:
8c/(2(c^2-6c+9) * 2(c-3)/1
------
Reduce again:
8c/(c^2-6c+9) * (c-3)/1
------
Factor:
8c/(c-3)^2 * (c-3)/1
----------
Reduce again:
8c/(c-3)
==================================
Subtract and simplify if possible
7-y 8y-9
--- - ----
y-9 9-y
------------------
Adjust the 2nd denominator sign.
(7-y)/(y-9) + (8y-9)/(y-9)
----
[8y-y-9+7)/(y-9)
----
[7y-2]/[y-9]
==================
Cheers,
Stan H.