9+5(t+1)4t=

Solution for 9+5(t+1)4t= equation:

Simplifying
9 + 5(t + 1) * 4t = 0

Reorder the terms:
9 + 5(1 + t) * 4t = 0

Reorder the terms for easier multiplication:
9 + 5 * 4t(1 + t) = 0

Multiply 5 * 4
9 + 20t(1 + t) = 0
9 + (1 * 20t + t * 20t) = 0
9 + (20t + 20t2) = 0

Solving
9 + 20t + 20t2 = 0

Solving for variable 't'.

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

Divide each side by '20'.
0.45 + t + t2 = 0.0

Move the constant term to the right:

Add '-0.45' to each side of the equation.
0.45 + t + -0.45 + t2 = 0.0 + -0.45

Reorder the terms:
0.45 + -0.45 + t + t2 = 0.0 + -0.45

Combine like terms: 0.45 + -0.45 = 0.00
0.00 + t + t2 = 0.0 + -0.45
t + t2 = 0.0 + -0.45

Combine like terms: 0.0 + -0.45 = -0.45
t + t2 = -0.45

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

Add '0.25' to each side of the equation.
 + 0.25 + t2 = -0.45 + 0.25

Combine like terms:  + 0.25 = 1.25
1.25 + t2 = -0.45 + 0.25

Combine like terms: -0.45 + 0.25 = -0.2
1.25 + t2 = -0.2

Factor a perfect square on the left side:
(t + 0.5)(t + 0.5) = -0.2

Can't calculate square root of the right side.

The solution to this equation could not be determined.