18x^2+5-[5(x^2-3)+8]=

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Solution for 18x^2+5-[5(x^2-3)+8]= equation:


Simplifying
18x2 + 5 + -1[5(x2 + -3) + 8] = 0

Reorder the terms:
18x2 + 5 + -1[5(-3 + x2) + 8] = 0
18x2 + 5 + -1[(-3 * 5 + x2 * 5) + 8] = 0
18x2 + 5 + -1[(-15 + 5x2) + 8] = 0

Reorder the terms:
18x2 + 5 + -1[-15 + 8 + 5x2] = 0

Combine like terms: -15 + 8 = -7
18x2 + 5 + -1[-7 + 5x2] = 0
18x2 + 5 + [-7 * -1 + 5x2 * -1] = 0
18x2 + 5 + [7 + -5x2] = 0

Reorder the terms:
5 + 7 + 18x2 + -5x2 = 0

Combine like terms: 5 + 7 = 12
12 + 18x2 + -5x2 = 0

Combine like terms: 18x2 + -5x2 = 13x2
12 + 13x2 = 0

Solving
12 + 13x2 = 0

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 13x2 = 0 + -12

Combine like terms: 12 + -12 = 0
0 + 13x2 = 0 + -12
13x2 = 0 + -12

Combine like terms: 0 + -12 = -12
13x2 = -12

Divide each side by '13'.
x2 = -0.9230769231

Simplifying
x2 = -0.9230769231

Reorder the terms:
0.9230769231 + x2 = -0.9230769231 + 0.9230769231

Combine like terms: -0.9230769231 + 0.9230769231 = 0.0000000000
0.9230769231 + x2 = 0.0000000000

The solution to this equation could not be determined.

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