Math Is Fun Forum
You are not logged in.
- Topics: Active | Unanswered
Pages: 1
#1 2022-07-13 20:33:33
- jadewest
- Member
- Registered: 2021-02-20
- Posts: 44
Quadratic Inequalities
Hello,
I have solved this exercise as follows:
x^2 + 49 < 14x
7^2 + 49 < 14(7)
49 + 49 < 98
98 < 98 X
This inequality is not true, because 98 is equal to 98.
What is there more to solve?
Thank you,
Jade
Offline
#2 2022-07-13 21:29:00
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,187
Re: Quadratic Inequalities
Hi jadewest,
The solution is +7, and it is no longer in inequality.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
Offline
#3 2022-07-13 21:47:56
- Bob
- Administrator
- Registered: 2010-06-20
- Posts: 10,143
Re: Quadratic Inequalities
So you have to conclude there are no solutions to the inequality as it has < not ≤
Bob
Children are not defined by school ...........The Fonz
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you! …………….Bob 
Offline
Pages: 1