Question

(−1)[p–(−5)(−q)]+(p+q)(−2) if p=−3, q=7.

Answer 1

Answer: 30

Step-by-step explanation:

(−1)[p–(−5)(−q)]+(p+q)(−2)=

=(-1)[-3-(-5)(-7)]+(-3+7)(-2)=

=(-1)[-3-35]+4(-2)=

= (-1)(-38)-8=

= 38-8=

=30