x^2+(-3)+(-8)=0

Solution for x^2+(-3)+(-8)=0 equation:

Simplifying
x2 + (-3) + (-8) = 0
x2 + -3 + (-8) = 0
x2 + -3 + -8 = 0

Reorder the terms:
-3 + -8 + x2 = 0

Combine like terms: -3 + -8 = -11
-11 + x2 = 0

Solving
-11 + x2 = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '11' to each side of the equation.
-11 + 11 + x2 = 0 + 11

Combine like terms: -11 + 11 = 0
0 + x2 = 0 + 11
x2 = 0 + 11

Combine like terms: 0 + 11 = 11
x2 = 11

Simplifying
x2 = 11

Take the square root of each side:
x = {-3.31662479, 3.31662479}