determine the value of k for which k square+4k +8,2k square+3k+6 and 3ksquare +4k+4 are in arithmetic progression
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so
k^2+4k+8+3k^2+4k+4=2(2k^2+3k+6)
if it is in a.p then find k
k^2+4k+8+3k^2+4k+4=2(2k^2+3k+6)
if it is in a.p then find k
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