# The simplified value of the expression ( x − 3 y ) 2 .

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 32E
To determine

Expert Solution

## Answer to Problem 32E

The value of the expression (x3y)2 is x26xy+9y2 .

### Explanation of Solution

Given information:

The expression (x3y)2 .

Formula used:

The special product formula of perfect square to multiply the algebraic expressions is mathematically expressed as,

(AB)2=A22AB+B2

Calculation:

Consider the given expression (x3y)2 .

Recall the special product formula of perfect square to multiply the algebraic expressions is mathematically expressed as,

(AB)2=A22AB+B2

Apply it,

(x3y)2=(x)22(x)(3y)+(3y)2=x26xy+9y2

Thus, the value of the expression (x3y)2 is x26xy+9y2 .

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