0=t^2-6t+15

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Solution for 0=t^2-6t+15 equation:


Simplifying
0 = t2 + -6t + 15

Reorder the terms:
0 = 15 + -6t + t2

Solving
0 = 15 + -6t + t2

Solving for variable 't'.

Combine like terms: 0 + -15 = -15
-15 + 6t + -1t2 = 15 + -6t + t2 + -15 + 6t + -1t2

Reorder the terms:
-15 + 6t + -1t2 = 15 + -15 + -6t + 6t + t2 + -1t2

Combine like terms: 15 + -15 = 0
-15 + 6t + -1t2 = 0 + -6t + 6t + t2 + -1t2
-15 + 6t + -1t2 = -6t + 6t + t2 + -1t2

Combine like terms: -6t + 6t = 0
-15 + 6t + -1t2 = 0 + t2 + -1t2
-15 + 6t + -1t2 = t2 + -1t2

Combine like terms: t2 + -1t2 = 0
-15 + 6t + -1t2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
15 + -6t + t2 = 0

Move the constant term to the right:

Add '-15' to each side of the equation.
15 + -6t + -15 + t2 = 0 + -15

Reorder the terms:
15 + -15 + -6t + t2 = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -6t + t2 = 0 + -15
-6t + t2 = 0 + -15

Combine like terms: 0 + -15 = -15
-6t + t2 = -15

The t term is -6t.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6t + 9 + t2 = -15 + 9

Reorder the terms:
9 + -6t + t2 = -15 + 9

Combine like terms: -15 + 9 = -6
9 + -6t + t2 = -6

Factor a perfect square on the left side:
(t + -3)(t + -3) = -6

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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