Question

Ajuda gente por favor é urgenteee!

Answer 1

Resposta:

a) - 32

b) 31/9

Explicação passo-a-passo:

a)

$\dfrac{-8^2}{(\dfrac{3}{2})^2 -(\dfrac{1}{2})^2}=\dfrac{-64}{\dfrac{9}{4}-\dfrac{1}{4}}=\dfrac{-64}{2} = -32$

b)

$10*(-\dfrac{2}{3})^2+8(-\dfrac{1}{2} )^3=10*\dfrac{4}{9} + 8*(-\dfrac{1}{8} )= \dfrac{40}{9} -1 = \dfrac{31}{9}$