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OpenStudy (anonymous):
how do you solve this equation x^2-8x+7=0?
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OpenStudy (anonymous):
Subtract 7 from goth sides and then get x by itself
OpenStudy (anonymous):
|dw:1399614474085:dw|
OpenStudy (anonymous):
x and y must add up to -8 and multiply to 7
OpenStudy (anonymous):
7=(a*c) 8=b
OpenStudy (anonymous):
okay thanks i got it!
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OpenStudy (anonymous):
7 and 1
OpenStudy (anonymous):
yes!
OpenStudy (anonymous):
its actually -7 and -1
OpenStudy (anonymous):
(x-1)(x-7) so it is 1 and 7
OpenStudy (anonymous):
no because when I factored it you have to equal it to 0
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OpenStudy (anonymous):
yea i was thinking about a and b not the actual x sorry
OpenStudy (anonymous):
No problem. Thank you again
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