SSC (English Medium) Class 8Maharashtra State Board
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Expand. (13+X)(13−X) - SSC (English Medium) Class 8 - Mathematics

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Question

Expand.

(13+x) (13−x)

Solution

(13+x) (13−x)

= -[(x+ 13)(x - 13)]

= - [(x)2 + {13 + (-13)}x + (13) × (-13)]

= -[x2 + (13-13)x - 169)]

= -[x2 - 169]

= 169 - x2

  Is there an error in this question or solution?

APPEARS IN

 Balbharati Solution for Balbharati Class 8 Mathematics (2019 to Current)
Chapter 5: Expansion formulae
Practice Set 5.1 | Q: 4 | Page no. 24
Solution Expand. (13+X)(13−X) Concept: Expansion of (X + A) (X + B).
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