SOLUTION: Solve the inequalities. xsquared-3x-4>0

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Question 108014: Solve the inequalities.
xsquared-3x-4>0
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

solve first x%5E2+-+3x+-+4+=+0, then take only values for x where x%5E2+-+3x+-+4+%3E+0

Solved by pluggable solver: SOLVE any equation
Your Result:


YOUR ANSWER


  • This is an equation! Solutions: x=4,x=-1.
  • Graphical form: Equation x%5E2-3x-4=0 was fully solved.
  • Text form: x^2-3x-4=0 simplifies to 0=0
  • Cartoon (animation) form: simplify_cartoon%28+x%5E2-3x-4=0+%29
    For tutors: simplify_cartoon( x^2-3x-4=0 )
  • If you have a website, here's a link to this solution.

DETAILED EXPLANATION

Look at highlight_red%28+x%5E2-3%2Ax-4+%29=0.
Equation highlight_red%28+x%5E2-3%2Ax-4=0+%29 is a quadratic equation: x^2-3*x-4 =0, and has solutions 4,-1
It becomes highlight_green%28+0+%29=0.
Result: 0=0
This is an equation! Solutions: x=4,x=-1.

Universal Simplifier and Solver


Done!
0=0;x=4;x=-1



as you can see, we will take all values for x+%3E+4
solution:
[4,infinity)