p(0)=x^2-2-13

Solution for p(0)=x^2-2-13 equation:

Simplifying
p(0) = x2 + -2 + -13

Reorder the terms for easier multiplication:
0p = x2 + -2 + -13

Anything times zero is zero.
0p = x2 + -2 + -13

Reorder the terms:
0 = -2 + -13 + x2

Combine like terms: -2 + -13 = -15
0 = -15 + x2

Solving
0 = -15 + x2

Solving for variable 'x'.

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

Add '-1x2' to each side of the equation.
0 + -1x2 = -15 + x2 + -1x2
Remove the zero:
-1x2 = -15 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-1x2 = -15 + 0
-1x2 = -15

Divide each side by '-1'.
x2 = 15

Simplifying
x2 = 15

Take the square root of each side:
x = {-3.872983346, 3.872983346}