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OpenStudy (anonymous):
solve and check. 3d^2+8d-3=0 d=
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OpenStudy (anonymous):
3d2+9d-d-3=0 3d(d+3)-(d+3)=0 (3d-1)(d+3)
OpenStudy (anonymous):
d= 1/3 or -3
OpenStudy (anonymous):
now subsititute those two values in equation above........
OpenStudy (anonymous):
I dont know how to do it
OpenStudy (anonymous):
so is the answer 1/3?
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