Question

Calcule o valor e expressão -(2+1/2)- (3/2-1/4

Answer 1

Resposta:

-( -1 2/2 + 1/2)^2 - ( 6/4 - 1/4) =

-( -1 1/2)^2 - ( +5/4) =

-( -3/2)^2 - 5/4 =

-9/4 - 5/4 =

-14/4 = -3 2/4 = -3 1/2

Espero ter ajudado ♥

Answer 2

Resposta:

$\sf - \left ( - 2 + \dfrac{1}{2} \right )^2 - \left ( \dfrac{3}{2} - \dfrac{1}{4} \right ) =$

$\sf - \left ( - \dfrac{4}{2} + \dfrac{1}{2} \right )^2 - \left ( \dfrac{6}{4} - \dfrac{1}{4} \right ) =$

$\sf - \left ( -\dfrac{3}{2} \right )^2 - \left ( \dfrac{5}{4} \right ) =$

$\sf - \left ( +\dfrac{9}{4} \right ) - \left ( \dfrac{5}{4} \right ) =$

$\sf - \dfrac{9}{4} - \dfrac{5}{4} =$

$\sf - \dfrac{14 \div 2 }{4 \div 2} =$

$\boxed{ \sf - \dfrac{7}{2}} \quad \longleftarrow \mathbf{ Resposta}$

Explicação passo-a-passo: