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OpenStudy (anonymous):
What is the value of b^2-4ac for the following equation? x(x+8)=9 The possible answers are 28, 64, and 100.
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OpenStudy (anonymous):
It means to use the quadratic equation: (-b(plus or minus) the square root of b^2-4ac ) all divded by 2a Its asking you just to find the inside vaule of the equation 5^2-4*1*4= 9 a=1 b=5 c=4 Source(s): quadratic equation :D
OpenStudy (anonymous):
Medal :D>?
OpenStudy (anonymous):
@sarahhmariee please Medel me
OpenStudy (anonymous):
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