Question about Texas Instruments TI-89 Calculator
What you're typing in and thus asking for is the cube of the expansion of (x-5), and that is exactly what the calculator is giving you. The expansion of (x-5) is (x-5), of course, and the cube of that is (x-5)^3.
What you want is the expansion of (x-5)^3. To get this you need one more set of parentheses.
Note the two open parens immediately after the "d".
Posted on Jan 17, 2010
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