Introduction
to Algebra using the TI-92 Ó 1997
by Nathan O. Niles
Associate Professor (Retired)
U. S. Naval Academy
12. Exponents
Some Graphing Calculators perform exponent operations on both numbers
and variables. Some only on numbers. Exponents on numbers give a numerical
answer. Exponents on letters give an algebraic expression. The following
discussion is for a TI-92 Graphing Calculator.
| Example |
Key strokes |
Display |
| 34 ×
32 |
3 
4  3
2  |
729 |
| x4 ×
x2 |
x
4 x
2 |
x6 |
| x5/ x3 |
x
5  x
2 |
x2 |
| x3/ x5 |
x
3 x
5 |
 |
| (a2 ×
a5)3 |
a 2
a 5 
3 |
a21 |
| (23 ×
x5)3 |
2 3
x 5
3 |
512 x15 |
 |
x 3
y 2
4 |
 |
| (- 3)2
(- 3)3 |
3
2
3
3 |
- 243 |
| (- 32)(-
3)3 |
3 2
3
3 |
243 |