Converting To A Fraction: The Quadratic Formula - Texas Instruments TI-82 STATS Manual Book

Converting to a Fraction: The Quadratic Formula

You can show the solution as a fraction.
1. Press  to display the
2. Press to select
1
When you press
the home screen.
contains the last calculated answer.
3. Press Í to convert the result to a fraction.
To save keystrokes, you can recall the last expression you entered, and then edit it for
a new calculation.
4. Press y [
ENTRY
fraction conversion entry, and then press y
[ ] again to recall the quadratic-formula
ENTRY
expression,
2 4
b b ac
2 a
5. Press } to move the cursor onto the
the formula. Press ¹ to edit the quadratic-
formula expression to become:
2 4
b b ac
2 a
6. Press Í to find the other solution for the
quadratic equation 3X
menu.
MATH
from the
1:4Frac MATH
, is displayed on
1 Ans4Frac
is a variable that
Ans
] (above Í) to recall the
2
+ 5X + 2 = 0.
menu.
sign in
+
Getting Started 7