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Find the Following Squares by Suing the Identities (0.4p − 0.5q)2 - Mathematics

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ConceptStandard Identities

Question

Find the following squares by suing the identities 

(0.4p − 0.5q)2

Solution

(0.4p − 0.5q)2 = (0.4p)2 − 2 (0.4p) (0.5q) + (0.5q)2

[(a − b)2 = a2 − 2ab + b2]

= 0.16p− 0.4pq + 0.25q2

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APPEARS IN

 NCERT Solution for Mathematics Textbook for Class 8 (2018 to Current)
Chapter 9: Algebraic Expressions and Identities
Ex. 9.5 | Q: 3.5 | Page no. 151

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Solution Find the Following Squares by Suing the Identities (0.4p − 0.5q)2 Concept: Standard Identities.
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