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OpenStudy (anonymous):
Calculate the discriminant. x^2 – 2x + 4 = 0 A. 12 B. -12 C. 20 D. 0 please help
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OpenStudy (anonymous):
@jprose @codyisbeast @brian16 @starlord
OpenStudy (kitkat16):
I think you have to use the quadratic formula a=1, b=-2, c=4 b^2-4ac then substitute the values ((-2)^2(-4)(1)(4) 4-4(4) multiply by -4 4-16 so subtract 16 from 4 and you get -12
OpenStudy (anonymous):
thank you so much @KitKat16
OpenStudy (kitkat16):
you're welcome
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