Hey there! :)
Answer:
2u³ (5u + 1)(u + 3)
Step-by-step explanation:
Begin by factoring a common factor from each term. In this instance, it would be 2u³:
2u³ (5u² + 16u + 3)
Factor the polynomial inside the parenthesis. The factors must add up to 16u, and multiply to become 3. We get:
2u³ (5u + 1)(u + 3)
This is the equation factored entirely!
The key to this question is
"exactly one pair"
every shape stated has more than one pair except for the trapezoid
(which has just one)
9n+15 is the right answer. Have a good day! :)