(1/8)8x=56

Solution for (1/8)8x=56 equation:

(1/8)8x=56

We move all terms to the left:

(1/8)8x-(56)=0


Domain of the equation: 8)8x!=0

x!=0/1

x!=0

x∈R


We add all the numbers together, and all the variables

(+1/8)8x-56=0

We multiply parentheses

8x^2-56=0

a = 8; b = 0; c = -56;
Δ = b2-4ac
Δ = 02-4·8·(-56)
Δ = 1792
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:

$\sqrt{\Delta}=\sqrt{1792}=\sqrt{256*7}=\sqrt{256}*\sqrt{7}=16\sqrt{7}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-16\sqrt{7}}{2*8}=\frac{0-16\sqrt{7}}{16}
=-\frac{16\sqrt{7}}{16}
=-\sqrt{7}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+16\sqrt{7}}{2*8}=\frac{0+16\sqrt{7}}{16}
=\frac{16\sqrt{7}}{16}
=\sqrt{7}
$