n is an integer such that 3n + 2 < 14 and 6n/(n^2+5) > 1. Find all possible values of n.

First of all, solving the equation 3n + 2 < 14 to find n. 3n < 14 -2 = 3n < 12. n < 12/3 = n < 4Secondly solve the equation 6n/(n^2+5) > 1 to find n. Collect all terms on one side of the to solve the equation as a quadratic. Therefore, multiplying both sides by (n^2 + 5) will give: 6n > n^2 +5. Then minus both sides by 6n to give n^2 -6n +5 < 0. Solve the quadratic n^2 -6n +5, which gives (n-5)(n-1)<0. Therefore n = 5 and n=1, thus 1<n<5Finally, finding all n that satisfy both equation so the answer is 2 and 3.

KP
Answered by Kai P. Maths tutor

19000 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Given that your grade for your computing is based on 5 coursework that weigh differently, and you know the results of 4: 80, 75, 50 and 90 which weighs 10%, 20%, 45% and 5%. What grade do you need in your last coursework to achieve at least a B (70%)?


Solve the following simulatenous equation to find the values of both x and y: 5x+2y=16 3x-y=14


A group of 5 people order 2 8 inch pizzas, with heights 2cm and 1cm, and density 3/pi g/cm^3, and 5/pi g/cm^3 respectively. If they divide each pizza evenly, how much pizza, in grams, does each person eat? Use 1 inch = 2.5 cm.


Expand the brackets (x+1)(x-4)


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning