(x+3)(x+3)-2=34

Solution for (x+3)(x+3)-2=34 equation:

(x+3)(x+3)-2=34

We move all terms to the left:

(x+3)(x+3)-2-(34)=0

We add all the numbers together, and all the variables

(x+3)(x+3)-36=0

We multiply parentheses ..

(+x^2+3x+3x+9)-36=0

We get rid of parentheses

x^2+3x+3x+9-36=0

We add all the numbers together, and all the variables

x^2+6x-27=0

a = 1; b = 6; c = -27;
Δ = b2-4ac
Δ = 62-4·1·(-27)
Δ = 144
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{144}=12$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(6)-12}{2*1}=\frac{-18}{2}
=-9
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(6)+12}{2*1}=\frac{6}{2}
=3
$