Calcule o valor da expressão: ![( \frac{-8}{14}) x (\frac{7}{2} ) : (0,4) x ( \frac{5}{3} ) + \sqrt[3]{ \frac{-64}{8} }](https://tex.z-dn.net/?f=%28+%5Cfrac%7B-8%7D%7B14%7D%29+x+++%28%5Cfrac%7B7%7D%7B2%7D+%29+%3A+%280%2C4%29+x+%28+%5Cfrac%7B5%7D%7B3%7D+%29+%2B++%5Csqrt%5B3%5D%7B+%5Cfrac%7B-64%7D%7B8%7D+%7D+ "( \frac{-8}{14}) x (\frac{7}{2} ) : (0,4) x ( \frac{5}{3} ) + \sqrt[3]{ \frac{-64}{8} }")
Alissonsk:
Esse sinal de "x" é multiplicação?
sim.
Tu pode me ajudar pf? preciso mt da resposta;
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( -8/14) . ( 7/2) : 0.4 .(5/3) + ∛(-64)/(8)
( -8/14) * ( 7/12) = ( - 56/168) = ( - 1/3) *****
0.4 * 5/3 = 4/10 * 5/3 = 20/30 = 2/3 *****
( -64/8 ) = -8 OU ∛(-8) = ∛(-2)³ = -2 ***
REESCREVENDO
( - 1/3) : ( 2/3) + ( -2 ) =
( -1/3) * ( 3/2) - 2/1 =
( - 3/6 ) - 2/1 =
MMC = 6
( -3 - 12)/6 = -15/6 = -5/2 ****
( -8/14) * ( 7/12) = ( - 56/168) = ( - 1/3) *****
0.4 * 5/3 = 4/10 * 5/3 = 20/30 = 2/3 *****
( -64/8 ) = -8 OU ∛(-8) = ∛(-2)³ = -2 ***
REESCREVENDO
( - 1/3) : ( 2/3) + ( -2 ) =
( -1/3) * ( 3/2) - 2/1 =
( - 3/6 ) - 2/1 =
MMC = 6
( -3 - 12)/6 = -15/6 = -5/2 ****
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