Question

Find the square of
number without actual
multiplication ​

Answer 1

Step-by-step explanation:

1. First split the numbers eg. 75= (70+ 5)

2. Then apply formula of (a+b)²

3. Then u can carry on the normal addition

4. After the whole addition, write the answer

(HOPE THIS ANSWER HELPS U)

Answer 2

Answer:

5625

Step-by-step explanition

(75)² = (76 - 1)²

with the help of formula

(a - b)²= a² +b²-2ab

we should solve (76 - 1)²

a =76. b=1

(76 - 1)²= (76)²+(1)²- 2*76*1

           = 5776+1-152

           = 5777-152

           = 5625 Answer