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Help with linear eqaution

 
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SWANSON



Joined: 13 Feb 2011
Posts: 1
PostPosted: February 13, 2011 8:06 PM    Post subject: Help with linear eqaution Reply with quote
I'm trying to solve the following problem:

(3x-1) (4x+5)
----------------- <= 0
(x+7)(1-2x)

Iv tried entering that in the TI89 Titanium followed by a comma and an "x" then a parenthesis to close and keep getting either a syntax or missing parenthesis error. Any help please.
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mellamokb



Joined: 10 May 2007
Posts: 124
PostPosted: February 14, 2011 10:26 AM    Post subject: Reply with quote
Hi SWANSON,

Try entering it like this:

Code:

solve( a / b <= 0, x) | a = (3x-1)(4x+5) and b = (x+7)(1-2x)



Sometimes breaking up the problem into pieces or storing it in variables can help simplify the expression.

Hope this helps!

Regards,
~ mellamokb
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