Question

how can I solve the following inequality 36x^2 +7 < 11?

Answer 1

-7 and /36

Answer 2

well just do that : 36x^2 < 18
x * x < 18 / 36
x * x < 1 / 2

Answer 3

x^2 < 4/36 ; sqrt it

x < +- 2/6

Answer 4

might have to adjust the sign lol

Answer 5

Sometimes Im a little bit crazy. I was substracting 11-3 and I got 3 haha. It is clear guys.

Answer 6

:)

Answer 7

sometimes I mess up with small things like substracting two numbers

Answer 8

By the way, what happens if after adding and substracting terms in the expression I get something like 36x^2>3. I you can see there is not way of factoring it out...

Answer 9

I already find the answer