0=-2(7x^2-20)-19

Solution for 0=-2(7x^2-20)-19 equation:

Simplifying
0 = -2(7x2 + -20) + -19

Reorder the terms:
0 = -2(-20 + 7x2) + -19
0 = (-20 * -2 + 7x2 * -2) + -19
0 = (40 + -14x2) + -19

Reorder the terms:
0 = 40 + -19 + -14x2

Combine like terms: 40 + -19 = 21
0 = 21 + -14x2

Solving
0 = 21 + -14x2

Solving for variable 'x'.

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

Add '14x2' to each side of the equation.
0 + 14x2 = 21 + -14x2 + 14x2
Remove the zero:
14x2 = 21 + -14x2 + 14x2

Combine like terms: -14x2 + 14x2 = 0
14x2 = 21 + 0
14x2 = 21

Divide each side by '14'.
x2 = 1.5

Simplifying
x2 = 1.5

Take the square root of each side:
x = {-1.224744871, 1.224744871}