9(x + 1)^4 - 19(x + 1)^2 + 2 = 0
After expanding and re-factoring, we have:
(3x + 2)(3x + 4)(x^2 + 2x - 1) = 0
solutions are x = -2/3, x = -4/3, x = -1 - sqrt(2), x = sqrt(2) - 1
So, since it is square, we are going to take the square root of 121 which is 11. And since fencing goes around something, that means we have to find the perimeter. So since all four sides are the same length, we can just multiply 11 by 4 to get 44 meters of fencing
We'll call the three consecutive even numbers n, n+2, and n+4.
n + (n+2) + (n+4) = 156
3n + 6 = 156
3n = 150
n = 50
The three numbers are 50, 52, and 54. Hope this helps! :)
