Question

without actual calculation, find the square of:
1=145​

Answer 1

Answer: I think it is 145=5

Answer 2

Answer:

Step-by-step explanation:

145 = 100 + 45

using the identity,

(a + b)² = a² + b² + 2ab

(100+45)² = 100² + 45² + 2(100)(45)

                = 10000 + 2025 + 9000

                = 21025

HOPE IT HELPS YOU!