SOLUTION: Solve x. x^2+2^x = 100

Question 172677: Solve x.
x^2+2^x = 100
Found 2 solutions by Mathtut, Alan3354:
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!

:

Solved by pluggable solver: SOLVE quadratic equation (work shown, graph etc)

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=404 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 9.04987562112089, -11.0498756211209. Here's your graph:

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Solve x.
x^2+2^x = 100
-------------
mathtut used 2x instead of 2^x.
I was hoping to see someone solve this one, I don't know how.
I know that x = 6, but I don't know how to solve it.
RELATED QUESTIONS
Solve: (x + 1)^2 =... (answered by Fombitz)
Solve for x 5(x-100)=2(x-100)+21 (answered by rfer)
solve algebraically x^2+y^2=100 x+y=2 (answered by Alan3354)
x^2+(x+2)(x+2)=100 (answered by brysca,MathTherapy)
Solve each equation... (answered by Fombitz)
100-(x-5)^2 (answered by jim_thompson5910)
x^2+15=100 (answered by jorel1380)
x^2-29x+100 (answered by Alan3354)
x^2-100 = 0 (answered by Edwin McCravy,Alan3354)