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OpenStudy (anonymous):
x^2-8x+7=0
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OpenStudy (happy_to_help):
Whats the question?
OpenStudy (jhannybean):
What two numbers multiply to give +7 but add to give -8?
OpenStudy (anonymous):
-7 -1
OpenStudy (just_one_last_goodbye):
I'm pretty sure it's not negative answers tho
jimthompson5910 (jim_thompson5910):
so that's why `x^2-8x+7` factors to `(x-7)(x-1)` meaning that `x^2-8x+7=0` is equivalent to `(x-7)(x-1) = 0`
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jimthompson5910 (jim_thompson5910):
use the zero product property to solve `(x-7)(x-1) = 0` for x
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