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Mathematics 15 Online
OpenStudy (anonymous):

x^2-8x+7=0

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`

jimthompson5910 (jim_thompson5910):

use the zero product property to solve `(x-7)(x-1) = 0` for x

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