SOLUTION: Hi! Please help me, with this question, the problem says: Evaluate each of the following if a=3 and b=4 (a-b)^3 Please and Thank You=)

Question 130747This question is from textbook algebra
: Hi!
Please help me, with this question, the problem says:
Evaluate each of the following if a=3 and b=4
(a-b)^3
Please and Thank You=) This question is from textbook algebra

Answer by bucky(2189) (Show Source): You can put this solution on YOUR website!
Given:
.

.
You are asked to evaluate this when a = 3 and b = 4. So all you need to do is replace a with 3
and replace b with 4.
.
When you make these two substitutions the problem then becomes:
.

.
Combine the two terms inside the parentheses by subtracting 4 from 3 to get -1. This reduces the
problem to:
.

.
You then cube -1 by multiplying it by itself three times ... -1 times -1 times -1. If you
do that multiplication you get -1 as the answer.
.
So the answer to this problem is that when a = 3 and b = 4 then:
.

.
Hope this helps you to understand the problem.
.
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