Derrick decided to use blocking to deal with extraneous factors in his experiment. if 2 treatments are applied to one of his groups, how many treatments should be applied to his other groups

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

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α. мσℓє¢υℓє σf ωαтєя

в.тнєє-¢αявσи ѕυgαя

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му αиѕωєя: ιт ιѕ ¢. "єχ¢ιтє∂" єℓє¢тяσи

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