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OpenStudy (anonymous):
Joyce is trying to solve the equation y = x2 − 8x + 7 using the quadratic formula. She has made an error in one of the steps below. Find the step where Joyce went wrong.
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OpenStudy (anonymous):
hartnn (hartnn):
the first step is itself incorrect the value of b actually is -8 and it was taken as 8
OpenStudy (anonymous):
Okay, it won't work automatically since they started off wrong.
hartnn (hartnn):
yup :)
OpenStudy (anonymous):
Thanks ! (:
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