Question

how to find the square root of 625 with the help of the identity ( a+b)2 = a2 +(2a+b) b.​

Answer 1

Answer:

Given: 625.

To find: The square of 625 using the identity (a + b)2 = a2 + b2 + 2ab?

Solution: From given, we have, 625. So, we have,

625 = 600 + 25. (a + b)2 = a2 + b2 + 2ab.

(600 + 25)² = 600² + 25² + 2 × 600 × 25. = 360000 + 625 + 30000. = 390625.

Answer 2

Answer:

Given: 625.

To find: The square of 625 using the identity (a + b)2 = a2 + b2 + 2ab?

Solution: From given, we have, 625. So, we have,

625 = 600 + 25. (a + b)2 = a2 + b2 + 2ab.

(600 + 25)² = 600² + 25² + 2 × 600 × 25. = 360000 + 625 + 30000. = 390625.

Step-by-step explanation:

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