Question

DETERMINE O VALOR NUMERICO DA EXPREÇAO = A.B+A.(-4 AC +2 ) QDO A= -2 B=+1\6 E C =+1\2

Answer 1

a*b+a*(-4*ac+2)

-2*1/6-2*[(-4)*(-2)*1/2+2]

-2/6-2*[8*1/2+2]

-2/6-2*[8/2+2]

-2/6-2*[4+2]

-2/6-2*[6]

-2/6-12

(-2-72)/6

-74/6=-37/3