SSC (English Medium) Class 8Maharashtra State Board
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Expand. ( 1 Y + 4 ) ( 1 Y − 9 ) - SSC (English Medium) Class 8 - Mathematics

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Question

Expand.

`(1/y+4)(1/y-9)`

Solution

`(1/y+4)(1/y-9)`

= `(1/y)^2 + {4 + (-9)}1/y + (4) xx (-9)`

= `1/y^2 + (-5) xx 1/y -36`

= `1/y^2 -5/y - 36`

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APPEARS IN

 Balbharati Solution for Balbharati Class 8 Mathematics (2019 to Current)
Chapter 5: Expansion formulae
Practice Set 5.1 | Q: 9 | Page no. 24
Solution Expand. ( 1 Y + 4 ) ( 1 Y − 9 ) Concept: Expansion of (X + A) (X + B).
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