Factor the trinomial
u2 + u − 30

Since we see u² as the first term, we know that the factored form will be something like: (u ± something)(u ± something)

We also know that the sum of these 'somethings' is 1, and he product is negative 30 (because that's 1 u, and -30). The two numbers that have a sum of 1 and a product of -30 are 6 and -5, so the factored form of this trinomial is (u + 6)(u - 5)

(u+6)(u-5) is the factored form because the two numbers in the factored must add up to the middle term and must have a product that's equal to the third term.

351.23

step-by-step explanation:

false

step-by-step explanation:

false.   two legs of the trapezoid would be congruent, but the other two would not.   were all the legs congruent, then we'd have a square; were the 2 shorter sides congruent and the 2 longer sides also congruent, we'd have a rectangle.