Question

find the square of the following numbers 17 and 203

Answer 1

Question :- find the square of the following numbers 17 and 203 ?

Solution :-

we will use algebraic identities to find the square of both given numbers ...

Square of 17 :-

→ 17²

→ (20 - 3)²

using (a - b)² = a² + b² - 2ab

→ (20)² + (3)² - 2 * 20 * 3

→ 400 + 9 - 120

→ 409 - 120

→ 289 (Ans.)

Similarly,

→ Square of 203 :-

→ 203²

→ (200 + 3)²

using (a - b)² = a² + b² + 2ab

→ (200)² + (3)² + 2 * 200 * 3

→ 40000 + 9 + 1200

→ 40009 + 1200

→ 41209 (Ans.)

Learn More :-

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Answer 2

(i) 17

sol:- 17^2=17×17=289

(ii) 203

sol:- 203^2=203×203=41209

203×203

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607

000

406

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41209

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