Question

Einstein ajuda ai !!!!!​

Answer 1

a) (4 + 4v3 + 3) = (7 + 4v3)
b) (3 - 2v3 + 1) = (4 - 2v3)
c) (25 + 20v3 + 4 . 3) = (37 + 20v3)
d) (3 - 1) = (2)

Answer 2

Resposta:

OLÁ

VAMOS A SUA PERGUNTA:⇒⇒

A=====>

$\sf (2+\sqrt{3})^2$

$\sf 4+4\sqrt{3}+(\sqrt{3})^2\approx 13.92820323$

$\sf 4+4\sqrt{3}+3\approx13.92820323$

$\boxed{\bold{\displaystyle{\clubsuit\ \spadesuit\ \maltese\ \sf \red{7+4\sqrt{3}\approx13.92820323} }}}\ \checkmark$

B=====>

$\sf (\sqrt{3}-1)^2$

$\sf (\sqrt{3} )^2-2\sqrt{3}+1\approx0.535898385$

$\sf 3-2\sqrt{3}+1\approx0.535898385$

$\boxed{\bold{\displaystyle{\clubsuit\ \spadesuit\ \maltese\ \sf \red{4-2\sqrt{3}\approx0.535898385} }}}\ \checkmark$

C=====>

$\sf 5+2\sqrt{3} )^{2}$

$\sf 25+20\sqrt{3}+4 (\sqrt{3})^2\approx71.641016151$

$\sf 25+20\sqrt{3}+4\times3\approx71.641016151$

$\sf 25+20\sqrt{3}+12\approx71.641016151$

$\boxed{\bold{\displaystyle{\clubsuit\ \spadesuit\ \maltese\ \sf \red{37+20\sqrt{3}\approx71.641016151}}}}\ \checkmark$

D=====>

$\sf(\sqrt{3}+1)(\sqrt{3}-1)$

• A multiplicação pode ser transformada na diferença dos quadrados através da regra: (a−b)(a+b)=a² - b²

$\sf (\sqrt{3})^2-1^2\approx2$

$\sf 3-1^2=2$

$\sf3-1=2$

$\boxed{\bold{\displaystyle{\clubsuit\ \spadesuit\ \maltese\ \sf \blue{=2}}}}\ \checkmark$

Explicação passo-a-passo:

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