2t^2+15=6t-5t

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Solution for 2t^2+15=6t-5t equation:


Simplifying
2t2 + 15 = 6t + -5t

Reorder the terms:
15 + 2t2 = 6t + -5t

Combine like terms: 6t + -5t = 1t
15 + 2t2 = 1t

Solving
15 + 2t2 = 1t

Solving for variable 't'.

Reorder the terms:
15 + -1t + 2t2 = 1t + -1t

Combine like terms: 1t + -1t = 0
15 + -1t + 2t2 = 0

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

Divide each side by '2'.
7.5 + -0.5t + t2 = 0

Move the constant term to the right:

Add '-7.5' to each side of the equation.
7.5 + -0.5t + -7.5 + t2 = 0 + -7.5

Reorder the terms:
7.5 + -7.5 + -0.5t + t2 = 0 + -7.5

Combine like terms: 7.5 + -7.5 = 0.0
0.0 + -0.5t + t2 = 0 + -7.5
-0.5t + t2 = 0 + -7.5

Combine like terms: 0 + -7.5 = -7.5
-0.5t + t2 = -7.5

The t term is -0.5t.  Take half its coefficient (-0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
-0.5t + 0.0625 + t2 = -7.5 + 0.0625

Reorder the terms:
0.0625 + -0.5t + t2 = -7.5 + 0.0625

Combine like terms: -7.5 + 0.0625 = -7.4375
0.0625 + -0.5t + t2 = -7.4375

Factor a perfect square on the left side:
(t + -0.25)(t + -0.25) = -7.4375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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