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Multiply the Binomials (2.5l − 0.5m) and (2.5l + 0.5m) - CBSE Class 8 - Mathematics

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Question

Multiply the binomials (2.5l − 0.5m) and (2.5l + 0.5m)

Solution

(2.5l − 0.5m) × (2.5l + 0.5m) = 2.5l × (2.5l + 0.5m) − 0.5m (2.5l + 0.5m)

= 6.25l2 + 1.25lm − 1.25lm − 0.25m2

= 6.25l2 − 0.25m2

  Is there an error in this question or solution?

APPEARS IN

 NCERT Solution for Mathematics Textbook for Class 8 (2018 to Current)
Chapter 9: Algebraic Expressions and Identities
Ex. 9.40 | Q: 1.3 | Page no. 148
Solution Multiply the Binomials (2.5l − 0.5m) and (2.5l + 0.5m) Concept: Multiplying a Polynomial by a Polynomial - Multiplying a Binomial by a Binomial.
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