2a=7/4a

Solution for 2a=7/4a equation:

2a=7/4a

We move all terms to the left:

2a-(7/4a)=0


Domain of the equation: 4a)!=0

a!=0/1

a!=0

a∈R


We add all the numbers together, and all the variables

2a-(+7/4a)=0

We get rid of parentheses

2a-7/4a=0

We multiply all the terms by the denominator


2a*4a-7=0

Wy multiply elements

8a^2-7=0

a = 8; b = 0; c = -7;
Δ = b2-4ac
Δ = 02-4·8·(-7)
Δ = 224
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$a_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$a_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:

$\sqrt{\Delta}=\sqrt{224}=\sqrt{16*14}=\sqrt{16}*\sqrt{14}=4\sqrt{14}$
$a_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-4\sqrt{14}}{2*8}=\frac{0-4\sqrt{14}}{16}
=-\frac{4\sqrt{14}}{16}
=-\frac{\sqrt{14}}{4}
$
$a_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+4\sqrt{14}}{2*8}=\frac{0+4\sqrt{14}}{16}
=\frac{4\sqrt{14}}{16}
=\frac{\sqrt{14}}{4}
$