SOLUTION: Please help me solve this equation : -x^2 + 5x +4 = 0

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Question 1012983: Please help me solve this equation :
-x^2 + 5x +4 = 0
Found 2 solutions by ikleyn, macston:
Answer by ikleyn(52778)   (Show Source): You can put this solution on YOUR website!
.
Please help me solve this equation :
-x^2 + 5x +4 = 0
--------------------------------------- 

Use the quadratic formula, and you will get


 =  = .


Answer by macston(5194)   (Show Source): You can put this solution on YOUR website!
-x^2+5x+4=0
Solved by pluggable solver: SOLVE quadratic equation with variable
Quadratic equation (in our case ) has the following solutons:



For these solutions to exist, the discriminant should not be a negative number.

First, we need to compute the discriminant : .

Discriminant d=41 is greater than zero. That means that there are two solutions: .




Quadratic expression can be factored:

Again, the answer is: -0.701562118716424, 5.70156211871642. Here's your graph:
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