anonymous
  • anonymous
It's been so long since I've done these; how do I solve 7x^2-72x+81?
Algebra
schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
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anonymous
  • anonymous
Well what do you remember?
anonymous
  • anonymous
Like do you remember the general equation?
dumbcow
  • dumbcow
how long has it been :)

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dumbcow
  • dumbcow
i programmed the quadratic formula into my calculator to do these real quick
anonymous
  • anonymous
nice. I would do the same, but i dont because it wont help me later on @dumbcow
anonymous
  • anonymous
Are you there? @Dcherry1996
anonymous
  • anonymous
Yes sorry I mean I remember this... |dw:1358139387150:dw|
anonymous
  • anonymous
But not what to do if there's a number in front of the x^2
anonymous
  • anonymous
it doesn't matter if you use quadratic formula
anonymous
  • anonymous
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.
anonymous
  • anonymous
^^ I understand that much, but what do I do if there's a number in front of the x^2?
anonymous
  • anonymous
Hero has shown it and he is a great teacher on this site.
anonymous
  • anonymous
Just saw that, hang on let me go through that

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