201k views
3 votes
find 2 consecutive integers such that three times the square of the first is equal to seven more than five times the second

User Fza
by
5.3k points

1 Answer

3 votes

Answer:

Explanation:

We are looking for two numbers,
N and
N + 1. From the problem statement, we can setup the following equation:


3N^(2) = 5(N + 1) + 7


3N^(2) = 5N + 5 + 7


3N^(2) - 5N - 12 = 0


(3N + 4)(N - 3)


N = (-4)/(3), 3

Because 3 is the only integer solution, the answer is 3 and 4.

User Martin Smith
by
5.3k points