Question

el resultado de la siguiente operación [4-5(2-3)] [-5(1)+9(2)]+8[6(-4)+3]=

a) 72
b) -13
c) -51
d) 285
e) -132

Answer 1

[-5(1) + 9(2)] + 8 [6(-4) + 3]

[ -5 + 9(2)] + 8 [6(-4) + 3]

[ -5 + 18] + 8 [6(-4) + 3]

+13 + 8 [6(-4) + 3]

+13 +8 [ -24 + 3]

+13 + 8 - 21

+21 - 21

= 0