To raise 10 to an exponent, use the 10^x function (SHIFT log). To raise e to an exponent, use the e^x function (SHIFT ln). To raise an arbitrary value to an exponent, use x^y (just above the sin key). To enter an exponent of ten, use the x10^x key to the right of the decimal point.
SOURCE: I am using a Casio FX-115ES Calculator. I would
All you have to do is to close the right parenthesis to make sure that the exponent is encloses in parentheses. Another trivial way is to use the commutativity of the addition operation.
Instead of entering 15^(6) + 32, enter instead 32 + 15^6. But the parentheses are the best way to avoid ambiguities.
If you use the MthIO input output mode, you will be able to verify if what you are typing in is exactly what you intend. If you make a mistake, use the navigation buttons to backtrack and correct.
SOURCE: Inputing factors on a casio fx-115es calculator
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.
CG
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