Professores Online » gpr https://www.professoronline.net Thu, 13 Jun 2024 14:08:46 +0000 pt-BR hourly 1 https://wordpress.org/?v=4.1.41 Se f(2x + 1) = x² + 2x, então f(2) vale: https://www.professoronline.net/se-f2x-1-x%c2%b2-2x-entao-f2-vale/ https://www.professoronline.net/se-f2x-1-x%c2%b2-2x-entao-f2-vale/#comments Tue, 25 Jun 2013 21:52:55 +0000 para obter f(2)?
2x+1=2, gostaria de saber de onde tirou esse = 2?

logo depois resolvendo,x ficaria = 1
2
ae substituindo o x.teriamos
f(2.1+1)= 1 2+2.1
2 2 2

f (1+1)=1+1
4
e agora??. Procurei em varios sites ate no livro não axo resposta pra me ajudar.

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