Question

using the identity (a + b)² = a2 + 2 a b + b² simplify the following 51²​

Answer 1

Answer:

(51^2)= (50+2)^2

= 50^2+ 2*50*2+ 2^2

= 2500 + 200 + 4

= 2704

Answer 2

Answer:

2601

Step-by-step explanation:

51 can also be written as 50 + 1

hence(50 + 1)^2=  2500 + 1 + 2 * 50 * 1 = 2601                ( where a=50  ,  b= 1)

therefore 51 ^2 = 2601