16=32x-8x^2

Solution for 16=32x-8x^2 equation:

16=32x-8x^2

We move all terms to the left:

16-(32x-8x^2)=0

We get rid of parentheses

8x^2-32x+16=0

a = 8; b = -32; c = +16;
Δ = b2-4ac
Δ = -322-4·8·16
Δ = 512
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:

$\sqrt{\Delta}=\sqrt{512}=\sqrt{256*2}=\sqrt{256}*\sqrt{2}=16\sqrt{2}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-32)-16\sqrt{2}}{2*8}=\frac{32-16\sqrt{2}}{16}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-32)+16\sqrt{2}}{2*8}=\frac{32+16\sqrt{2}}{16}
$