SOLUTION: I submitted these questions a few days ago and got no response. This is due no later than tonite please help.... 1. Simplify the rational expression: x2 � 6x + 5 x2 � 25

Question 81393: I submitted these questions a few days ago and got no response. This is due no later than tonite please help....
1. Simplify the rational expression:
x2 � 6x + 5
x2 � 25

2. Divide:
x2 � 9x + 8 � x2 � 1
2x � 4 2x + 2

3. Simplify:
√[64x10y2z46]

4. Perform the indicated operations:
4√[18] + 2√[32] �√[8]

Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
1. Simplify the rational expression:
x^2 � 6x + 5
Can be factored to:
(x-5)(x-1)
:
x^2 � 25
This is the difference of squares, can be factored to:
(x-5)(x+5)
:
:
2. Divide:

:
= ; canceled the (x-1)'s
:

:
Factor out 2 and you have:
= ; canceled 2
:
:
3. Simplify:
√[64x10y2z46]; I can't decipher what you mean here

4. Perform the indicated operations:

:
Factor to show the squares inside the radicals, then extract the sqrts
= =
:
Notice we have like terms (all sqrt(2)) so we can just add them up:
; the final result

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