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Mathematics 8 Online
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.

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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