We express 198 as 200 – 2 and use the subtraction square identity with a = 200 and b = 2. Working out the arithmetic components gives the final plain text answer.
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To find this square value quickly, we convert 198 into 200 – 2. We apply the identity by substituting the values where a equals 200 and b equals 2. Squaring the first term gives 40000, and squaring the second term gives 4. The intermediate term to subtract is calculated as two times 200 times 2, which equals 800. Subtracting 800 from 40000 and adding 4 results in 39204.
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/