Expand: (2x-1x)(3x+2x)

Expand: `( 2x - 1/x )( 3x + 2/x )`

Sum

`( 2x - 1/x )( 3x + 2/x )`

= `2x( 3x + 2/x ) - 1/x( 3x + 2/x )`

= `6x^2 + 2x xx2/x-1/x xx3x-1/x xx2/x`

= `6x^2+4-3-2/x^2`

= `6x^2 + 1 - 2/x^2`

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Expansion of Formula

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Chapter 4: Expansions (Including Substitution) - Exercise 4 (C) [Page 62]

Chapter 4 Expansions (Including Substitution)
Exercise 4 (C) | Q 2.1 | Page 62

Expand : ( x + 8 ) ( x + 10 )

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