SOLUTION: when the sum of 5 and three times a positive number is subtracted from the square of the number, 0 rusults

Question 531458: when the sum of 5 and three times a positive number is subtracted from the square of the number, 0 rusults
Answer by oberobic(2304) (Show Source): You can put this solution on YOUR website!
x^2 -(3x +5) = 0
x^2 -3x -5 = 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=29 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 4.19258240356725, -1.19258240356725. Here's your graph:

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