(7(x^2))-4=0

Solution for (7(x^2))-4=0 equation:

Simplifying
(7(x2)) + -4 = 0

Reorder the terms:
-4 + (7x2) = 0

Solving
-4 + (7x2) = 0

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + (7x2) = 0 + 4

Combine like terms: -4 + 4 = 0
0 + (7x2) = 0 + 4
(7x2) = 0 + 4

Combine like terms: 0 + 4 = 4
(7x2) = 4

Divide each side by '7'.
x2 = 0.5714285714

Simplifying
x2 = 0.5714285714

Take the square root of each side:
x = {-0.755928946, 0.755928946}