Answer: (a-2b)3=3a-6b
=3x-2-6x-1/2
= -6+3
= -3
Step-by-step explanation:
Answer:
the index of 2 is -1
Step-by-step explanation:

=
=
Answer:
x= -9
Step-by-step explanation:
7(x+2)=-49
divide both sides by 7
(x+2)=-7
subtract 2 from both dies
x= -9
Answer:
A
Step-by-step explanation:
bc it's the most simple option for roxanne