We apply the identity using the decimal values where a = 2.5p and b = 1.5q. Evaluating the squares of the decimals and their double product gives the final expanded form.
Using the identity (a + b) square = a square + 2ab + b square, expand (2.5p + 1.5q) square
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This expression is expanded by substituting decimal coefficients into the identity formula. We set a equal to 2.5p and b equal to 1.5q. Squaring 2.5p results in 6.25p square, while squaring 1.5q results in 2.25q square. Multiplying two by 2.5p and 1.5q provides the middle term, which is 7.5pq. Combining these decimal values completes the expansion process.
For more NCERT Solutions for Class 9 Maths Ganita Manjari Chapter 4 Exploring Algebraic Identities (2026-27):
https://www.tiwariacademy.com/ncert-solutions/class-9/maths/ganita-manjari-chapter-4/