-49=-4x^2

Solution for -49=-4x^2 equation:

Simplifying
-49 = -4x2

Solving
-49 = -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.
-49 + 4x2 = -4x2 + 4x2

Combine like terms: -4x2 + 4x2 = 0
-49 + 4x2 = 0

Add '49' to each side of the equation.
-49 + 49 + 4x2 = 0 + 49

Combine like terms: -49 + 49 = 0
0 + 4x2 = 0 + 49
4x2 = 0 + 49

Combine like terms: 0 + 49 = 49
4x2 = 49

Divide each side by '4'.
x2 = 12.25

Simplifying
x2 = 12.25

Take the square root of each side:
x = {-3.5, 3.5}