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OpenStudy (anonymous):
2 times x over 6 times x plus 7 equal 2 over x. What is the value of x?
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OpenStudy (amistre64):
you having to practice words to math notation or what?
OpenStudy (dumbcow):
great equation :)
whats the order of operations?
2x/(6x+7) = 2/x
??
OpenStudy (anonymous):
no kinda like radical exspressions
OpenStudy (anonymous):
and yes dumbcow
OpenStudy (dumbcow):
i think you mean rational expressions
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OpenStudy (anonymous):
what is the value of x
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
i really need help
OpenStudy (dumbcow):
well you have 2 ratios equal to each other...cross-multiply
2x^2 = 12x +14
OpenStudy (dumbcow):
divide by 2 and set equal to 0
x^2 -6x -7 = 0
Factor and solve
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OpenStudy (anonymous):
soo the answer is?
OpenStudy (dumbcow):
... the roots of the quadratic above ^^
you have done these before
OpenStudy (anonymous):
not reallly
im have to do this assignment and its due today
OpenStudy (anonymous):
i dnt understand tht well
OpenStudy (dumbcow):
i showed you the steps to get it into a quadratic.
use the quadratic formula, do you learn how to use that?
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OpenStudy (anonymous):
yes but wats the answer
OpenStudy (dumbcow):
you tell me, and i'll tell you if its right.
quadratic formula:
x = -b +-sqrt(b^2-4ac) / 2a
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