the sum of the squares of two consecutive even integers is 340 find the two numbers

x^2+(x+1)^2 = 85
x^2+x^2+2x+1 = 85
2x^2+2x-84 = 0
(2x - 12)(x+7) = 0
2x = 12 atau x = -7

If x = 6 maka x+1 = 7
If x = -7 maka x+1 = -6

Thus, the numbers are 6 and 7 or -7 and -6