4x^2-16x^2-9=0

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Solution for 4x^2-16x^2-9=0 equation:


Simplifying
4x2 + -16x2 + -9 = 0

Reorder the terms:
-9 + 4x2 + -16x2 = 0

Combine like terms: 4x2 + -16x2 = -12x2
-9 + -12x2 = 0

Solving
-9 + -12x2 = 0

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + -12x2 = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -12x2 = 0 + 9
-12x2 = 0 + 9

Combine like terms: 0 + 9 = 9
-12x2 = 9

Divide each side by '-12'.
x2 = -0.75

Simplifying
x2 = -0.75

Reorder the terms:
0.75 + x2 = -0.75 + 0.75

Combine like terms: -0.75 + 0.75 = 0.00
0.75 + x2 = 0.00

The solution to this equation could not be determined.

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