Question

Solve the inequality and express your answer in interval notation.

Answer 1

\[x ^{2}+6x+7<0\]0

Answer 2

Hi,
r u sure that the expression is x^2 +6x +7 ? could it be X^2 +6x -7 ?

Answer 3

It's +7

Answer 4

Can you help?

Answer 5

so we got no choice but to make it an perfect square ... Do u know how to do that ?

Answer 6

No

Answer 7

Use from Quadratic equation and find each X s is < 0 :)

Answer 8

Can't I solve this by graphing?

Answer 9

Yep !
Mabey !

Answer 10

of course ..... Y not ?

Answer 11

But I see two better way !

Answer 12

I know how to solve it graphically, but i'm not getting any of my answer choices

Answer 13

One :
kill 6x and answer :)
2 :
Use from Quadratic equation
My idea is 2 :)!

Answer 14

tell me the way u graph it ? wt was ur function ?

Answer 15

I just graphed x^2+6x+7 and looked where it crossed the x-intercept, and got -4.4<x<-1.58 which is also equal to \[\left[ -3-\sqrt{2}, -3+\sqrt{2} \right]\]