Concept explainers
a.
To show steps required to determine product.
a.
Answer to Problem 8.4.2P
Explanation of Solution
Given:
Expression
Calculation:
The given expression is
To solve the product,
Using identity
Substituting value,
Now solving further,
We know that,
Substituting value as x =a2, y=b2
Hence,
b.
To evaluate the expression
b.
Answer to Problem 8.4.2P
Solution of the expression is 441.
Explanation of Solution
Given:
Calculation:
Original expression is
Substituting value,
=
Solving the equation,
=
So,
=(21)(21)
Hence, solution is 441.
c.
To result the indication in part a.
c.
Answer to Problem 8.4.2P
The simplified expression is easier to evaluate.
Explanation of Solution
Given:
Calculation:
The product is
Substituting value,
=
Solving,
=
So,
=212
Hence, evaluation of the expression is 441.
The result is same but however the simplified expression is better to evaluate.
Chapter ISG Solutions
Algebra 1, Homework Practice Workbook (MERRILL ALGEBRA 1)
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