To Evaluate: The simplified value of the expression
Answer to Problem 20CLR
The value of the expression
Explanation of Solution
Given information:
The expression is
Formula used:
When an algebraic expression multiply by group of algebraic terms connected with addition or subtraction is equal to multiplication of expression with the terms separately. That is
If two terms have the same sign, their product is positive.
If two terms have the opposite sign, their product is negative.
We can add terms of an algebraic expression which is like.
Calculation:
Consider the expression is
Re writes the expression as,
Recall that when an algebraic expression multiply by group of algebraic terms connected with addition or subtraction is equal to multiplication of expression with the terms separately. That is
Use it,
Again recall that If two terms have the same sign, their product is positive and
if two terms have the opposite sign, their product is negative.
Apply it,
Also we know that we can add terms of an algebraic expression which is like.
Again apply it,
Thus, the value of the expression
Chapter 12 Solutions
Algebra: Structure And Method, Book 1
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