Question

ME AJUDEMMM!

Calcule as expressões:
15-4.[(-3).(-6+2)].(-1+6)=

(-7)+(-8)+[10+5+(1-6)+3].(+2)=

Answer 1

a) 15-4.[(-3).(-6+2)].(-1+6) =
= 11 . [(-3) . (-4)] . 5
= 11 . 12 . 5
= 660

b) (-7)+(-8)+[10+5+(1-6)+3].(+2)=
= (-7) - 8 + [15 + (- 5) + 3] . 2
= - 15 + (15 - 5 + 3) . 2
= - 15 + (10 + 3) . 2
= - 15 + 13 . 2
= - 15 + 26
= 11