Question

If 440 is the sum of square of three
consecutive even numbers, then find the
middle number​

Answer 1

Answer:

The middle number = 12

Step-by-step explanation:

suppose the first number is x -2, x and x+2 .

(x-2)^2 + x^2 + (x+2)^2 =440

x^2 -4x +4 +x^2 +x^2 +4x +4 = 440

3x^2 +8 = 440

3x^2 = 432

x^2 = 144

x = 12 or -12

Answer 2

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