SOLUTION: x^2-16x+4=0

Question 357185: x^2-16x+4=0
Found 2 solutions by stanbon, nerdybill:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
x^2-16x+4=0
Quadratic Formula:
x = [16 +- sqrt(16^2-4*4)]/2
---
x = [16 +- sqrt(240)]/2
---
x = [16 +- 4sqrt(15)]/2
---
x = [8 +- 2sqrt(15)]
===========================
Cheers,
Stan H.
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
x^2-16x+4=0
.
Since you can't factor, you must apply the quadratic formula. Doing so yields:
x = {15.75, 0.25}
.
Details of quadratic follows:
.

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=240 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 15.7459666924148, 0.254033307585166. Here's your graph:

RELATED QUESTIONS
16x^2-16x+4... (answered by jim_thompson5910)
x^2+16x+28=0 (answered by solver91311)
Solve the equation... (answered by checkley77)
factor completely: X^4-2X^2-16X +32 = 0 (answered by rapaljer)
Find all real solutions:... (answered by josmiceli)
Solve x^2 - 16x + 64 =... (answered by Nate)
factoring trinomials... (answered by stanbon)
16x^2-49=0 (answered by checkley77)
16x^2-9=0 (answered by checkley77)