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Oct 4th, 2003, 04:11 PM
#1
Thread Starter
Dazed Member
Reducing Rational Expressions?
Anyone have any idea how i can go about reducing this expression? 5x-7x/ x2-7x2
I end up factoring as x(5-7)/x(x-7x) which i see no other way to factor. Now i don't know where to go from here.
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Oct 4th, 2003, 05:19 PM
#2
(5x-7x)/(x2-7x2) = x(5-7)/x2(1-7) = -2/-6x = 1/3x, x <> 0
The time you enjoy wasting is not wasted time.
Bertrand Russell
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Oct 4th, 2003, 06:17 PM
#3
So Unbanned
Without brackets(literal)... -(7x^3-5x^2+7)/x
Otherwise 1/3x
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Oct 5th, 2003, 05:20 PM
#4
Thread Starter
Dazed Member
Ahhhh ok. Thanks for the help guys. Math is not one of my strong subjects. How about this one. I think i got it but im not too sure.
y3 - y2 - 2y/ 6y2 - 24
y(y2 -y -2)/6(y2 - 4)
y(y-2)(y+1)/6(y-2)(y+2) --> y(y+1)/6(y+2)
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Oct 5th, 2003, 05:49 PM
#5
So Unbanned
Originally posted by Dilenger4
Ahhhh ok. Thanks for the help guys. Math is not one of my strong subjects. How about this one. I think i got it but im not too sure.
y3 - y2 - 2y/ 6y2 - 24
y(y2 -y -2)/6(y2 - 4)
y(y-2)(y+1)/6(y-2)(y+2) --> y(y+1)/6(y+2)
That's right.
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Oct 5th, 2003, 06:19 PM
#6
Thread Starter
Dazed Member
Many thanks. May your liver have a long and healthy life.
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