Question

solve using identity (98)²​

Answer 1

Answer:

Step-by-step explanation:

98 = 100-2

So, 98²= (100-2)²

            = (100)²-2X100X2+(2)²                [a-b]²=a²-2ab+b²

             =9600+4

             =9604.

Answer 2

Answer:

9604

Step-by-step explanation:

98=100-2

[a-b]^2=[100-2]^2

a^2-2ab+b^2=100^2-2*100*2+2^2

                      10000-400+4

                      9604