12=5t-t^2+4

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Solution for 12=5t-t^2+4 equation:


Simplifying
12 = 5t + -1t2 + 4

Reorder the terms:
12 = 4 + 5t + -1t2

Solving
12 = 4 + 5t + -1t2

Solving for variable 't'.

Combine like terms: 12 + -4 = 8
8 + -5t + t2 = 4 + 5t + -1t2 + -4 + -5t + t2

Reorder the terms:
8 + -5t + t2 = 4 + -4 + 5t + -5t + -1t2 + t2

Combine like terms: 4 + -4 = 0
8 + -5t + t2 = 0 + 5t + -5t + -1t2 + t2
8 + -5t + t2 = 5t + -5t + -1t2 + t2

Combine like terms: 5t + -5t = 0
8 + -5t + t2 = 0 + -1t2 + t2
8 + -5t + t2 = -1t2 + t2

Combine like terms: -1t2 + t2 = 0
8 + -5t + t2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-8' to each side of the equation.
8 + -5t + -8 + t2 = 0 + -8

Reorder the terms:
8 + -8 + -5t + t2 = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -5t + t2 = 0 + -8
-5t + t2 = 0 + -8

Combine like terms: 0 + -8 = -8
-5t + t2 = -8

The t term is -5t.  Take half its coefficient (-2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
-5t + 6.25 + t2 = -8 + 6.25

Reorder the terms:
6.25 + -5t + t2 = -8 + 6.25

Combine like terms: -8 + 6.25 = -1.75
6.25 + -5t + t2 = -1.75

Factor a perfect square on the left side:
(t + -2.5)(t + -2.5) = -1.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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