SOLUTION: Solve Graphically (x+3)^2-4 Greater than 0

Algebra ->  Graphs -> SOLUTION: Solve Graphically (x+3)^2-4 Greater than 0      Log On


   



Question 85072: Solve Graphically (x+3)^2-4 Greater than 0
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Solve Graphically (x+3)^2-4 Greater than 0
x^2+6x+9-5>0
x^2+6x+5>0
(x+5)(x+1)>0
Draw a number line;
Plot the points x=-5 and x=-1
Find the solution set for the inequality:
Solution: (-inf,-5) U (-1,+inf)
Graph:
graph%28400%2C300%2C-10%2C10%2C-10%2C10%2Cx%5E2%2B6x%2B5%29
See how the curve is above the x-axis when x is less than -5 and
when x is greater than -1.
Cheers,
Stan H.