Algebra
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OpenStudy (j2lie):
How do you solve this problem 12x2-22x-20
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OpenStudy (anonymous):
Restate the question ? Is it 12 times 2 - 22x or 12x times 2
OpenStudy (j2lie):
12x with the exponent 2.
OpenStudy (anonymous):
Alright :) Next time you type that type it like 12x ^2
OpenStudy (j2lie):
I didn't know I was suppose to do that.
OpenStudy (anonymous):
Just a hint. I don't know how to solve this though sorry :(
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OpenStudy (anonymous):
first take common factor
2(6x^2-11x-10)
2(3x+2)(2x-5)
OpenStudy (j2lie):
it's 2(3x+4)(x-15)
OpenStudy (anonymous):
no
OpenStudy (j2lie):
yes because you have to multiply the 6 to the 10.
OpenStudy (anonymous):
no
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OpenStudy (j2lie):
if you add -5 to 3 it would be -3 not -11.
OpenStudy (anonymous):
no if u have for example
x^2-2x-6=(x-4)(x+2) when u add (-4)(x)+2x=-2x which is the middle term
OpenStudy (anonymous):
use quadratic formula or factor it out
OpenStudy (j2lie):
I factor it with 2.
OpenStudy (anonymous):
yes quadratuc formula @sierraabel thank u very much i just didn't know the vocabulary
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OpenStudy (j2lie):
I'm only in the eighth grade.
OpenStudy (anonymous):
what do u call it in english
OpenStudy (j2lie):
factoring.
OpenStudy (j2lie):
what is quadratic formula?
OpenStudy (anonymous):
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