Mathematics
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OpenStudy (anonymous):
5(x-7)-4??
how ????
plsss,,
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OpenStudy (marissalovescats):
Distributive property with 5(x-7)
OpenStudy (anonymous):
then..?
OpenStudy (marissalovescats):
Add like terms
OpenStudy (marissalovescats):
So what is 5(x-7)?
OpenStudy (anonymous):
5x-35 ..
then?
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OpenStudy (marissalovescats):
Good so now you have
5x-35-4
So the answer is?
OpenStudy (anonymous):
i dont know..
how ?
OpenStudy (marissalovescats):
-35-4 is what?
OpenStudy (anonymous):
31?
OpenStudy (marissalovescats):
Not quite.
-35
-4
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OpenStudy (marissalovescats):
-35-4 would be -39
OpenStudy (anonymous):
ahhh.. so?
OpenStudy (marissalovescats):
So that's the answer.
5x-39
OpenStudy (anonymous):
it has to be quadratic equation..
OpenStudy (marissalovescats):
How there's no squaring anything
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OpenStudy (marissalovescats):
A quadratic equation is in the form of ax^2+bx+c
OpenStudy (anonymous):
this is the given
:
x(x-7)-4=0
OpenStudy (marissalovescats):
Okay well you put 7 lol
OpenStudy (marissalovescats):
So what's
x(x-7)
OpenStudy (marissalovescats):
You have 5(x-7)-4 not x(x-7)-4
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OpenStudy (anonymous):
x^2-7x?
OpenStudy (marissalovescats):
Good
So x^2-7x-4
OpenStudy (anonymous):
so thats the answer?
OpenStudy (marissalovescats):
Yup unless they want you to find x values with the quadratic formula.
OpenStudy (anonymous):
oh thanks.. :)
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OpenStudy (marissalovescats):
What does the question ask you to do?
geerky42 (geerky42):
You were given equation, not expression, so I'm sure question wants you to find the value of x.
geerky42 (geerky42):
you were given x(x-7)-4=0
OpenStudy (anonymous):
but... this i dont understand..
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