Quadratic formula Quadratic Motion Problems - helicopter plans to release a bucket of water on a forest fire- water drops with an initial velocity of 2 feet per second from a height of 500 feet- write an equation that models the height of the water with respect to the time after it is released- Question I have: Do I use -16t squared for the time or -4.9t squared?

SOURCE: Re: Quadratic equation

I like to take the a, b, and c values and store them as variables  -  a->x b->y c->z
then run: (- y + SQRT ( y^2-(4xz) ) )/2x     AND  (- y - SQRT ( y^2-(4xz) ) )/2x

the parentheses may be a bit confusing - 1 holds the whole top of the formula to be divided together, one holds everything under the square root, one holds the -4ac (or -4xz).
That ought to cover it.

SOURCE: My Ti-89 won't factor a quadratic equation with imaginary roots.

(a-b)3

SOURCE: want to solve quadratic equations on my casio 3650p super fx

Hello,
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.

SOURCE: how do i enter the equation 5x-3=11+12x

The variables you have at your disposal in this calculator are
A, B,C,D,X,Y,M. All of them are accessed by pressing the [ALPHA] key before the key near which is written the name of the variable. You will notice that the markings of the symbols accessed with the [ALPHA] key are of the same color as that of the [ALPHA] key.
You will notice also that there are two = signs.
The one at the bottom right executes the command line. By pressing it you find the result of the expression just entered.

The other = sign is marked on the body of the calculator with the same color as the [ALPHA] key. It is located at the top left of the keyboard (excluding the row with SHIFT, MODE, the navigation buttons)

Example to enter X^2-2X-35=0 (not your expression)
Direct access physical keys are in [ ],
[ALPHA] (X) [X to power 2] [ - ] [2] [ * ][ALPHA][(X) [ - ] [3][5] [ALPHA] (=) [0]

Usually when you enter such an expression it is with the intention of solving it for X. By default X is taken to be the UNKNOWN. You will be prompted to enter the value assigned to any other letter symbol (Y, A,B,C,D).

So, if you want to use the Solve function, you press [SHIFT] [CALC] and the calculator will ask you a question: "Solve for X?" , and you press the = sign at the bottom right.
Then you will be prompted for any other non-X letter.