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OpenStudy (anonymous):
3d^2+8d-3=0 solve
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OpenStudy (anonymous):
(d+9)(d-1)=0 d=-9 , d=1
OpenStudy (anonymous):
thats not right, d=(1/3) and d=-3
OpenStudy (anonymous):
just use the quadratic equation on it
OpenStudy (anonymous):
if d=1 you have 8=0 and if d=-9 you have 168=0 ...
OpenStudy (radar):
If you don't like using the quadratic formula, factor it (3d-1)(d+3)=0
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