18x^2+6-[2(x^2-7)+9]=

Solution for 18x^2+6-[2(x^2-7)+9]= equation:

Simplifying
18x2 + 6 + -1[2(x2 + -7) + 9] = 0

Reorder the terms:
18x2 + 6 + -1[2(-7 + x2) + 9] = 0
18x2 + 6 + -1[(-7 * 2 + x2 * 2) + 9] = 0
18x2 + 6 + -1[(-14 + 2x2) + 9] = 0

Reorder the terms:
18x2 + 6 + -1[-14 + 9 + 2x2] = 0

Combine like terms: -14 + 9 = -5
18x2 + 6 + -1[-5 + 2x2] = 0
18x2 + 6 + [-5 * -1 + 2x2 * -1] = 0
18x2 + 6 + [5 + -2x2] = 0

Reorder the terms:
6 + 5 + 18x2 + -2x2 = 0

Combine like terms: 6 + 5 = 11
11 + 18x2 + -2x2 = 0

Combine like terms: 18x2 + -2x2 = 16x2
11 + 16x2 = 0

Solving
11 + 16x2 = 0

Solving for variable 'x'.

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

Add '-11' to each side of the equation.
11 + -11 + 16x2 = 0 + -11

Combine like terms: 11 + -11 = 0
0 + 16x2 = 0 + -11
16x2 = 0 + -11

Combine like terms: 0 + -11 = -11
16x2 = -11

Divide each side by '16'.
x2 = -0.6875

Simplifying
x2 = -0.6875

Reorder the terms:
0.6875 + x2 = -0.6875 + 0.6875

Combine like terms: -0.6875 + 0.6875 = 0.0000
0.6875 + x2 = 0.0000

The solution to this equation could not be determined.