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OpenStudy (anonymous):
Solve 3x2 + 4x = 2
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OpenStudy (anonymous):
Solve x2 + 9x + 9 = 0.. i dont understand these problems
OpenStudy (angela210793):
D=b^2-4ac=16-4*3*(-2)=40>0 sqrD=2sqr10 x1=(-b+sqrD)/2a=(-4+2sqr10)/6=1/3(-2-sqr10) x2=(-b-sqrD)/2a=1/3(sqr10-2)
OpenStudy (anonymous):
\[(-2/3)+\sqrt{10} ,(-2/3)-\sqrt{10} \]
OpenStudy (dumbcow):
x=0.387, -1.721 raheen: your answer is wrong
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