SOLUTION: What is x squared plus 5x plus 4

Question 646778: What is x squared plus 5x plus 4
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

..........expression-quadratic function and if you set it equal to zero, it will be quadratic equation and you can find roots, and plot the graph which is a parabola

let's find the roots using quadratic formula:
...note, in your equation, , and

roots:

let's see it on a graph:

there is also another way to find solutions for this function
......replace with
.....group

roots:
if ...=>...
if ...=>...

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