Question

6. Dadas las expresiones: A = 4- {2-[3-(-1 + 4)]-(1-5)} B = [2-(-1) + (1-9) - 25] - [1 -(-4+ 9)]​

Answer 1

A:

4- {2-[3-(-1 + 4)]-(1-5)}

=4−(2−(3−3)−(1−5))

=4−(2−0−(1−5))

=4−(2−(1−5))

=4−(2−(−4))

=4−6

=−2

B

[2-(-1) + (1-9) - 25] - [1 -(-4+ 9)]

=3+1−9−25−(1−(−4+9))

=3+−8−25−(1−(−4+9))

=−5−25−(1−(−4+9))

=−30−(1−(−4+9))

=−30−(1−5)

=−30−(−4)

=−26