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OpenStudy (anonymous):
What is the discriminant of x² = 4.
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OpenStudy (zzr0ck3r):
b^2-4ac x^2-4 = 0 so a = 1 b = 0 and c = -4 thus the discriminant is 0-4(1)(-4)= 16
OpenStudy (zzr0ck3r):
make since?
OpenStudy (anonymous):
yep
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