8a-(-3-5a)2a=

Solution for 8a-(-3-5a)2a= equation:

8a-(-3-5a)2a=

We move all terms to the left:

8a-(-3-5a)2a-()=0

We add all the numbers together, and all the variables

8a-(-5a-3)2a-()=0

We add all the numbers together, and all the variables

8a-(-5a-3)2a=0

We multiply parentheses

10a^2+8a+6a=0

We add all the numbers together, and all the variables

10a^2+14a=0

a = 10; b = 14; c = 0;
Δ = b2-4ac
Δ = 142-4·10·0
Δ = 196
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$a_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$a_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{196}=14$
$a_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(14)-14}{2*10}=\frac{-28}{20}
=-1+2/5
$
$a_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(14)+14}{2*10}=\frac{0}{20}
=0
$