Question

What is the sum of two consecutive even numbers, the difference of whose squares is 84?​

Answer 1

Answer:

42

Step-by-step explanation:

Let the number be x and x+2

A.T.Q,

(x+2)2−x2=84

Now use basic formula of a2−b2=(a+b)(a−b)

⟹(x+2+x)⋅2=84

⟹(2⋅x+2)=42

⟹2⋅x=40

⟹x=20

Hence First number is 20 and Second number is 22(x+2)

Your answer will be, x+x+2=20+22=42

Answer 2

Answer:

20 +22

Step-by-step explanation:

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