Question

what is the sum of two consecutive even numbers; the difference of whose square is 84?​

Answer 1

Answer:

20 & 22

Step-by-step explanation:

let two consecutive even numbers be x and x+2

therefore, {(x+2)^2}-{(x)^2}=84

                 x^2+4+4x-x^2=84

                                    4x=80

                                      x=20

therefore,the two consecutive even numbers are 20 & 22