Question

Find the square of the following numbers without
actual Multiplication
i)15
i) 95​

Answer 1

Answer:

1)225 2)9025

Step-by-step explanation:

1)15^2=(10+5)^2

(10+5)^2=(10)^2+2*10*5+(5)^2

             =100+100+25

             =225

2)95^2=(100-5)^2

           =(100)^2-2*100*5+(5)^2

           =10000-1000+25

            =9025