x^2-kx-20=0

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Solution for x^2-kx-20=0 equation:


Simplifying
x2 + -1kx + -20 = 0

Reorder the terms:
-20 + -1kx + x2 = 0

Solving
-20 + -1kx + x2 = 0

Solving for variable 'k'.

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

Add '20' to each side of the equation.
-20 + -1kx + 20 + x2 = 0 + 20

Reorder the terms:
-20 + 20 + -1kx + x2 = 0 + 20

Combine like terms: -20 + 20 = 0
0 + -1kx + x2 = 0 + 20
-1kx + x2 = 0 + 20

Combine like terms: 0 + 20 = 20
-1kx + x2 = 20

Add '-1x2' to each side of the equation.
-1kx + x2 + -1x2 = 20 + -1x2

Combine like terms: x2 + -1x2 = 0
-1kx + 0 = 20 + -1x2
-1kx = 20 + -1x2

Divide each side by '-1x'.
k = -20x-1 + x

Simplifying
k = -20x-1 + x

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