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It's been so long since I've done these; how do I solve 7x^272x+81?
 one year ago
 one year ago
It's been so long since I've done these; how do I solve 7x^272x+81?
 one year ago
 one year ago

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blahblah_who_caresBest ResponseYou've already chosen the best response.0
Well what do you remember?
 one year ago

blahblah_who_caresBest ResponseYou've already chosen the best response.0
Like do you remember the general equation?
 one year ago

dumbcowBest ResponseYou've already chosen the best response.0
how long has it been :)
 one year ago

dumbcowBest ResponseYou've already chosen the best response.0
i programmed the quadratic formula into my calculator to do these real quick
 one year ago

blahblah_who_caresBest ResponseYou've already chosen the best response.0
nice. I would do the same, but i dont because it wont help me later on @dumbcow
 one year ago

blahblah_who_caresBest ResponseYou've already chosen the best response.0
Are you there? @Dcherry1996
 one year ago

Dcherry1996Best ResponseYou've already chosen the best response.0
Yes sorry I mean I remember this... dw:1358139387150:dw
 one year ago

Dcherry1996Best ResponseYou've already chosen the best response.0
But not what to do if there's a number in front of the x^2
 one year ago

mominanisarBest ResponseYou've already chosen the best response.0
it doesn't matter if you use quadratic formula
 one year ago

blahblah_who_caresBest ResponseYou've already chosen the best response.0
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.
 one year ago

Dcherry1996Best ResponseYou've already chosen the best response.0
^^ I understand that much, but what do I do if there's a number in front of the x^2?
 one year ago

blahblah_who_caresBest ResponseYou've already chosen the best response.0
Hero has shown it and he is a great teacher on this site.
 one year ago

Dcherry1996Best ResponseYou've already chosen the best response.0
Just saw that, hang on let me go through that
 one year ago
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