Question

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


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Answer 1

Let the numbers be x and x+2x = 20

Answer 2

Answer:

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

Step-by-step explanation:

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