Question

[-(1-2+6+9-3)(2-6+9-12)]-3​

Answer 1

Hola!

Resolvemos.

[-(1-2+6+9-3)(2-6+9-12)]-3

=(−(−1+6+9−3))(2−6+9−12)−3

=(−(5+9−3))(2−6+9−12)−3

=(−(14−3))(2−6+9−12)−3

=−11(2−6+9−12)−3

=−11(−4+9−12)−3

=−11(5−12)−3

=(−11)(−7)−3

=77−3

=74

Salu2!!

kiy_.