Question

Express 21 square as the sum of two consecutive integers

Answer 1

21 square is 441
Two consucative integers are x, (x+1)
According to the question
x + ( x+1)= 441
So 2x + 1 =441
So x = 441 - 1/2
So x = 200

x + 1 = 201

Two consucative integers are 200 and 201.

Answer 2

Answer:

sq of 21is 441

two consecutive integers are n, n+1

Step-by-step explanation:

n+(n+1)=441

so,2n+1=441

2n=441-1

n=400÷2

n=200

n+1=201