2x^2-kx-4=0

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Solution for 2x^2-kx-4=0 equation:


Simplifying
2x2 + -1kx + -4 = 0

Reorder the terms:
-4 + -1kx + 2x2 = 0

Solving
-4 + -1kx + 2x2 = 0

Solving for variable 'k'.

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

Add '4' to each side of the equation.
-4 + -1kx + 4 + 2x2 = 0 + 4

Reorder the terms:
-4 + 4 + -1kx + 2x2 = 0 + 4

Combine like terms: -4 + 4 = 0
0 + -1kx + 2x2 = 0 + 4
-1kx + 2x2 = 0 + 4

Combine like terms: 0 + 4 = 4
-1kx + 2x2 = 4

Add '-2x2' to each side of the equation.
-1kx + 2x2 + -2x2 = 4 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-1kx + 0 = 4 + -2x2
-1kx = 4 + -2x2

Divide each side by '-1x'.
k = -4x-1 + 2x

Simplifying
k = -4x-1 + 2x

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