10k^2-9=801

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Solution for 10k^2-9=801 equation: 


Simplifying
10k2 + -9 = 801

Reorder the terms:
-9 + 10k2 = 801

Solving
-9 + 10k2 = 801

Solving for variable 'k'.

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

Add '9' to each side of the equation.
-9 + 9 + 10k2 = 801 + 9

Combine like terms: -9 + 9 = 0
0 + 10k2 = 801 + 9
10k2 = 801 + 9

Combine like terms: 801 + 9 = 810
10k2 = 810

Divide each side by '10'.
k2 = 81

Simplifying
k2 = 81

Take the square root of each side:
k = {-9, 9}

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