Here's the question you clicked on:
Dcherry1996
It's been so long since I've done these; how do I solve 7x^2-72x+81?
Well what do you remember?
Like do you remember the general equation?
how long has it been :)
i programmed the quadratic formula into my calculator to do these real quick
nice. I would do the same, but i dont because it wont help me later on @dumbcow
Are you there? @Dcherry1996
Yes sorry I mean I remember this... |dw:1358139387150:dw|
But not what to do if there's a number in front of the x^2
it doesn't matter if you use quadratic formula
Ok. Sorry I had to leave. But the general equation is ax^2+bx+c So you get a*c. And you cut the bx into 2 numbers that add up to your a*c. Then you will eventually end up with (x+something)(x+something). And your answers are whatever makes the equation zero.
^^ I understand that much, but what do I do if there's a number in front of the x^2?
Hero has shown it and he is a great teacher on this site.
Just saw that, hang on let me go through that