Question

Qual é o valor de y= [4-(-1/2)²/3+(-3/2)²]-1

Answer 1

[4-(- $\frac{1}{2} ^{2}$) +( $\frac{-3}{2} ^{2}$)] -1 
[4 -($\frac{1}{4}$)÷ 3  + $\frac{9}{4}$] - 1
[ 4 - ($\frac{1}{4}$×$\frac{1}{3}$) + $\frac{9}{4}$] - 1
[ 4 - ($\frac{1}{12}$) + $\frac{9}{4}$] - 1
$\frac{48}{12}$ - $\frac{1}{12}$ + $\frac{27}{12}$] - 1
$\frac{74}{12}$ - 1
$\frac{74}{12}$ - $\frac{12}{12}$=$\frac{62}{12}$=$\frac{31}{6}$

Answer 2

y = [4 - (-1/2)² ÷ 3 + ( - 3/2)²] - 1
y = [ 4 - (1/4) ÷ 3+ (9/4)] -1
y =  [4 - 1/4 ÷ 3 + 9/4] - 1
y = [ 4 - 1/4·3/1 + 9/4 ] - 1
y = [ 4 - 3/4 + 9/4 ] -1
y = [ 4 + 6/4 ] - 1
y = [ 4/1 + 6/4] -1
M.M.C   y = [ 16/4 + 6/4] -1
y = [ 22/4 ] -1
y = 5.5 -1
y = 4.5