0.07t^2+0.84t+1.5=0

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Solution for 0.07t^2+0.84t+1.5=0 equation:


Simplifying
0.07t2 + 0.84t + 1.5 = 0

Reorder the terms:
1.5 + 0.84t + 0.07t2 = 0

Solving
1.5 + 0.84t + 0.07t2 = 0

Solving for variable 't'.

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

Divide each side by '0.07'.
21.42857143 + 12t + t2 = 0

Move the constant term to the right:

Add '-21.42857143' to each side of the equation.
21.42857143 + 12t + -21.42857143 + t2 = 0 + -21.42857143

Reorder the terms:
21.42857143 + -21.42857143 + 12t + t2 = 0 + -21.42857143

Combine like terms: 21.42857143 + -21.42857143 = 0.00000000
0.00000000 + 12t + t2 = 0 + -21.42857143
12t + t2 = 0 + -21.42857143

Combine like terms: 0 + -21.42857143 = -21.42857143
12t + t2 = -21.42857143

The t term is 12t.  Take half its coefficient (6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
12t + 36 + t2 = -21.42857143 + 36

Reorder the terms:
36 + 12t + t2 = -21.42857143 + 36

Combine like terms: -21.42857143 + 36 = 14.57142857
36 + 12t + t2 = 14.57142857

Factor a perfect square on the left side:
(t + 6)(t + 6) = 14.57142857

Calculate the square root of the right side: 3.817254061

Break this problem into two subproblems by setting 
(t + 6) equal to 3.817254061 and -3.817254061.

Subproblem 1

t + 6 = 3.817254061 Simplifying t + 6 = 3.817254061 Reorder the terms: 6 + t = 3.817254061 Solving 6 + t = 3.817254061 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + t = 3.817254061 + -6 Combine like terms: 6 + -6 = 0 0 + t = 3.817254061 + -6 t = 3.817254061 + -6 Combine like terms: 3.817254061 + -6 = -2.182745939 t = -2.182745939 Simplifying t = -2.182745939

Subproblem 2

t + 6 = -3.817254061 Simplifying t + 6 = -3.817254061 Reorder the terms: 6 + t = -3.817254061 Solving 6 + t = -3.817254061 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + t = -3.817254061 + -6 Combine like terms: 6 + -6 = 0 0 + t = -3.817254061 + -6 t = -3.817254061 + -6 Combine like terms: -3.817254061 + -6 = -9.817254061 t = -9.817254061 Simplifying t = -9.817254061

Solution

The solution to the problem is based on the solutions from the subproblems. t = {-2.182745939, -9.817254061}

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