Answer:
huh
Step-by-step explanation:
Answer:
Commutative Property for Multiplication
All steps that Marcie did are right, but she forgot to change sign in last step.
Consider the inequality

Then

Group the numbers:

Separate terms with x and without x in different sides:

The coefficient at x is -8 and it is negative, then dividing the inequality by -8 you have to change sign in opposite:

Answer: Marcie forgot to change sign in last step.
Answer:
a = 5, b = -12
Step-by-step explanation:
By basic factoring, you get 9 - 12i +
. Since
is simply -1, the expression evaluates to 9 - 12i - 4, which is 5 - 12i.
Answer:
10
Step-by-step explanation:
10 x 2 = 20
10 = 20 / 2