2n+3=1/2n+30

Solution for 2n+3=1/2n+30 equation:

2n+3=1/2n+30

We move all terms to the left:

2n+3-(1/2n+30)=0


Domain of the equation: 2n+30)!=0

n∈R


We get rid of parentheses

2n-1/2n-30+3=0

We multiply all the terms by the denominator


2n*2n-30*2n+3*2n-1=0

Wy multiply elements

4n^2-60n+6n-1=0

We add all the numbers together, and all the variables

4n^2-54n-1=0

a = 4; b = -54; c = -1;
Δ = b2-4ac
Δ = -542-4·4·(-1)
Δ = 2932
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$n_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$n_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:

$\sqrt{\Delta}=\sqrt{2932}=\sqrt{4*733}=\sqrt{4}*\sqrt{733}=2\sqrt{733}$
$n_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-54)-2\sqrt{733}}{2*4}=\frac{54-2\sqrt{733}}{8}
$
$n_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-54)+2\sqrt{733}}{2*4}=\frac{54+2\sqrt{733}}{8}
$