Final answer:
To complete the square in the expression u^2 + 65u, take half of the coefficient of u, then square it and add it to both sides of the equation. The result is (u + 32.5)^2 = 1056.25.
Step-by-step explanation:
To complete the square in the expression u^2 + 65u, we take half of the coefficient of u, then square it and add it to both sides of the equation. The coefficient of u is 65, so half of it is 32.5. Square 32.5 to get 1056.25. Adding this to both sides of the equation gives us:
u^2 + 65u + 1056.25 = 1056.25
We can write this as a binomial squared by recognizing that the left side is now a perfect square trinomial:
(u + 32.5)^2 = 1056.25