Multiply: 2

Multiply: `2"x"+1/2"y"` and `2"x"-1/2"y"`

Sum

`(2"x"+1/2"y")(2"x"-1/2"y")`

= `2"x"(2"x"-1/2"y")+1/2"y"(2"x"-1/2"y")`

= `4"x"^2-"xy"+"xy"-1/4"y"^2`

= `4"x"^2-1/4"y"^2`

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Chapter 11: Algebraic Expressions - Exercise 11 (C) [Page 143]

Chapter 11 Algebraic Expressions
Exercise 11 (C) | Q 1.18 | Page 143

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Multiply: 2"X"+1/2"Y" and 2"X"-1/2"Y" - Mathematics