2x^2+4x+4=4900

Solution for 2x^2+4x+4=4900 equation:

2x^2+4x+4=4900

We move all terms to the left:

2x^2+4x+4-(4900)=0

We add all the numbers together, and all the variables

2x^2+4x-4896=0

a = 2; b = 4; c = -4896;
Δ = b2-4ac
Δ = 42-4·2·(-4896)
Δ = 39184
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:

$\sqrt{\Delta}=\sqrt{39184}=\sqrt{16*2449}=\sqrt{16}*\sqrt{2449}=4\sqrt{2449}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(4)-4\sqrt{2449}}{2*2}=\frac{-4-4\sqrt{2449}}{4}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(4)+4\sqrt{2449}}{2*2}=\frac{-4+4\sqrt{2449}}{4}
$