(3x^2-4)+(5x^2+8)=

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Solution for (3x^2-4)+(5x^2+8)= equation:


Simplifying
(3x2 + -4) + (5x2 + 8) = 0

Reorder the terms:
(-4 + 3x2) + (5x2 + 8) = 0

Remove parenthesis around (-4 + 3x2)
-4 + 3x2 + (5x2 + 8) = 0

Reorder the terms:
-4 + 3x2 + (8 + 5x2) = 0

Remove parenthesis around (8 + 5x2)
-4 + 3x2 + 8 + 5x2 = 0

Reorder the terms:
-4 + 8 + 3x2 + 5x2 = 0

Combine like terms: -4 + 8 = 4
4 + 3x2 + 5x2 = 0

Combine like terms: 3x2 + 5x2 = 8x2
4 + 8x2 = 0

Solving
4 + 8x2 = 0

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + 8x2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + 8x2 = 0 + -4
8x2 = 0 + -4

Combine like terms: 0 + -4 = -4
8x2 = -4

Divide each side by '8'.
x2 = -0.5

Simplifying
x2 = -0.5

Reorder the terms:
0.5 + x2 = -0.5 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.5 + x2 = 0.0

The solution to this equation could not be determined.

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