4k^2=-10-9k

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Solution for 4k^2=-10-9k equation:


Simplifying
4k2 = -10 + -9k

Solving
4k2 = -10 + -9k

Solving for variable 'k'.

Reorder the terms:
10 + 9k + 4k2 = -10 + -9k + 10 + 9k

Reorder the terms:
10 + 9k + 4k2 = -10 + 10 + -9k + 9k

Combine like terms: -10 + 10 = 0
10 + 9k + 4k2 = 0 + -9k + 9k
10 + 9k + 4k2 = -9k + 9k

Combine like terms: -9k + 9k = 0
10 + 9k + 4k2 = 0

Begin completing the square.  Divide all terms by
4 the coefficient of the squared term: 

Divide each side by '4'.
2.5 + 2.25k + k2 = 0

Move the constant term to the right:

Add '-2.5' to each side of the equation.
2.5 + 2.25k + -2.5 + k2 = 0 + -2.5

Reorder the terms:
2.5 + -2.5 + 2.25k + k2 = 0 + -2.5

Combine like terms: 2.5 + -2.5 = 0.0
0.0 + 2.25k + k2 = 0 + -2.5
2.25k + k2 = 0 + -2.5

Combine like terms: 0 + -2.5 = -2.5
2.25k + k2 = -2.5

The k term is 2.25k.  Take half its coefficient (1.125).
Square it (1.265625) and add it to both sides.

Add '1.265625' to each side of the equation.
2.25k + 1.265625 + k2 = -2.5 + 1.265625

Reorder the terms:
1.265625 + 2.25k + k2 = -2.5 + 1.265625

Combine like terms: -2.5 + 1.265625 = -1.234375
1.265625 + 2.25k + k2 = -1.234375

Factor a perfect square on the left side:
(k + 1.125)(k + 1.125) = -1.234375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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