BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071
BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071

Solutions

Chapter 1.3, Problem 35E
To determine

To calculate: The simplified value of the expression (x+5)(x5) .

Expert Solution

Answer to Problem 35E

The value of the expression (x+5)(x5) is x225 .

Explanation of Solution

Given information:

The expression (x+5)(x5) .

Formula used:

The special product formula of difference of squares to multiply the algebraic expressions is mathematically expressed as,

  (A+B)(AB)=A2B2

Calculation:

Consider the given expression (x+5)(x5) .

Recall the special product formula of difference of squares to multiply the algebraic expressions is mathematically expressed as,

  (A+B)(AB)=A2B2

Apply it,

  (x+5)(x5)=(x)2(5)2=x225

Thus, the value of the expression (x+5)(x5) is x225 .

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