15x^2+5-[8(x^2-5)+9]=

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Solution for 15x^2+5-[8(x^2-5)+9]= equation:


Simplifying
15x2 + 5 + -1[8(x2 + -5) + 9] = 0

Reorder the terms:
15x2 + 5 + -1[8(-5 + x2) + 9] = 0
15x2 + 5 + -1[(-5 * 8 + x2 * 8) + 9] = 0
15x2 + 5 + -1[(-40 + 8x2) + 9] = 0

Reorder the terms:
15x2 + 5 + -1[-40 + 9 + 8x2] = 0

Combine like terms: -40 + 9 = -31
15x2 + 5 + -1[-31 + 8x2] = 0
15x2 + 5 + [-31 * -1 + 8x2 * -1] = 0
15x2 + 5 + [31 + -8x2] = 0

Reorder the terms:
5 + 31 + 15x2 + -8x2 = 0

Combine like terms: 5 + 31 = 36
36 + 15x2 + -8x2 = 0

Combine like terms: 15x2 + -8x2 = 7x2
36 + 7x2 = 0

Solving
36 + 7x2 = 0

Solving for variable 'x'.

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

Add '-36' to each side of the equation.
36 + -36 + 7x2 = 0 + -36

Combine like terms: 36 + -36 = 0
0 + 7x2 = 0 + -36
7x2 = 0 + -36

Combine like terms: 0 + -36 = -36
7x2 = -36

Divide each side by '7'.
x2 = -5.142857143

Simplifying
x2 = -5.142857143

Reorder the terms:
5.142857143 + x2 = -5.142857143 + 5.142857143

Combine like terms: -5.142857143 + 5.142857143 = 0.000000000
5.142857143 + x2 = 0.000000000

The solution to this equation could not be determined.

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