raiz de Y²-12Y+36=7,resolva equaçoes irracional,me ajudem.... Pergunta de ideia denatyvicty10

natyvicty10 @natyvicty10

July 2022 1 160 Report

raiz de Y²-12Y+36=7,resolva equaçoes irracional,me ajudem

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LuanaSC8

Verified answer

$y^{2} -12y+36=7\to\\\\\\ ( y^{2} -12y+36) ^{2} =( 7)^{2} \to \\\\y^{4} -12y ^{2} +1296=49\to\\\\ y^{4} -12y ^{2} +1296-49=0\to \\\\ y^{4} -12y ^{2} +1247=0\to y^{4} = x^{2}\\\\ x^{2} -12x+1247=0\\ \\a=1;b=-12;c=1247\\\\ \Delta= b^{2} -4ac\to\\ \Delta= (-12)^{2}-4*1*1247\to\\ \Delta=144-4988\to \\ \Delta=-4844$

Essa equação não tem solução, pois $\Delta\ \textless \ 0$ .

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a soma entre o quadrado de um numero real e 12=93 que numero e esse ? por favor me ajudem

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