c(0)=4x^2-3

Solution for c(0)=4x^2-3 equation:

Simplifying
c(0) = 4x2 + -3

Reorder the terms for easier multiplication:
0c = 4x2 + -3

Anything times zero is zero.
0c = 4x2 + -3

Reorder the terms:
0 = -3 + 4x2

Solving
0 = -3 + 4x2

Solving for variable 'x'.

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

Add '-4x2' to each side of the equation.
0 + -4x2 = -3 + 4x2 + -4x2
Remove the zero:
-4x2 = -3 + 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
-4x2 = -3 + 0
-4x2 = -3

Divide each side by '-4'.
x2 = 0.75

Simplifying
x2 = 0.75

Take the square root of each side:
x = {-0.866025404, 0.866025404}