25-10(a+b)=-a^2-ab-b^2

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Solution for 25-10(a+b)=-a^2-ab-b^2 equation: 


Simplifying
25 + -10(a + b) = -1a2 + -1ab + -1b2
25 + (a * -10 + b * -10) = -1a2 + -1ab + -1b2
25 + (-10a + -10b) = -1a2 + -1ab + -1b2

Reorder the terms:
25 + -10a + -10b = -1ab + -1a2 + -1b2

Solving
25 + -10a + -10b = -1ab + -1a2 + -1b2

Solving for variable 'a'.

Reorder the terms:
25 + -10a + ab + a2 + -10b + b2 = -1ab + -1a2 + -1b2 + ab + a2 + b2

Reorder the terms:
25 + -10a + ab + a2 + -10b + b2 = -1ab + ab + -1a2 + a2 + -1b2 + b2

Combine like terms: -1ab + ab = 0
25 + -10a + ab + a2 + -10b + b2 = 0 + -1a2 + a2 + -1b2 + b2
25 + -10a + ab + a2 + -10b + b2 = -1a2 + a2 + -1b2 + b2

Combine like terms: -1a2 + a2 = 0
25 + -10a + ab + a2 + -10b + b2 = 0 + -1b2 + b2
25 + -10a + ab + a2 + -10b + b2 = -1b2 + b2

Combine like terms: -1b2 + b2 = 0
25 + -10a + ab + a2 + -10b + b2 = 0

The solution to this equation could not be determined.

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