Question about Casio Rare Vintage Scientific Calculator Fx-4800p 4 Line Dot Matrix Lcd
Posted by Anonymous on
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Posted on Jan 02, 2017
Unless I am failing to understand your problem, just combine like terms to get:
9x^2+2x+4 and then enter those coefficients into the quadratic solver.
That will get you the two answers -- both of them will be complex.
If you wanted to turn those two answers into factors (complex) of the original equation simply
change the signs on each and put an x in front.
Of course, the quadratic formula would also work.
Posted on Apr 28, 2009
In your manual, Appendix Program Library, (Page A1) you have the listing of the problem to solve the quadratic equation. Type it in your calculator and execute it.
Hope it helps.
Posted on Oct 02, 2009
SOURCE: Why does it solve in fractions?
The calculator has two Input/Output modes: the default MthIO (new) and the old LineIO.
If you use the default MthIO you can let your calculator perform the operations in exact arithmetic. When you obtain the end result, you can easily convert a fraction/radical result into a decimal one by pressing the [S<=>D] key, or press [SHIFT][=] instead of [=].
However if you do not care about the MthIO and its nifty functionalities, you can configure your calculator to use LineIO.
To set LineIO press [SHIFT][MODE][2:LineIO]
Posted on Jan 29, 2010
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