Se ( -2√3)² é:
(2√3) x (2√3)=
4x√9= 4x3= 12
e se tiver um sinal de - o resultado altera?
Ex: (-2√3)²
(2√3) x (2√3)=
4x√9= 4x3= 12
e se tiver um sinal de - o resultado altera?
Ex: (-2√3)²
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Resposta:
Depende do caso
Explicação passo a passo:
[tex]\left(2\sqrt{3}\right)^2=2^2\left(\sqrt{3}\right)^2=4\left(\sqrt{3}\right)^2=4\cdot \:3=12[/tex]
[tex]\left(-2\sqrt{3}\right)^2=\left(2\sqrt{3}\right)^2=2^2\left(\sqrt{3}\right)^2=4\left(\sqrt{3}\right)^2=4\cdot \:3=12[/tex]
[tex]-\left(2\sqrt{3}\right)^2=-2^2\left(\sqrt{3}\right)^2=-4\left(\sqrt{3}\right)^2=-4\cdot \:3=-12[/tex]
[tex]-\left(-2\sqrt{3}\right)^2=-\left(2\sqrt{3}\right)^2=-2^2\left(\sqrt{3}\right)^2=-4\left(\sqrt{3}\right)^2=-12[/tex]