t^2+16t-43=0

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Solution for t^2+16t-43=0 equation:


Simplifying
t2 + 16t + -43 = 0

Reorder the terms:
-43 + 16t + t2 = 0

Solving
-43 + 16t + t2 = 0

Solving for variable 't'.

Begin completing the square.

Move the constant term to the right:

Add '43' to each side of the equation.
-43 + 16t + 43 + t2 = 0 + 43

Reorder the terms:
-43 + 43 + 16t + t2 = 0 + 43

Combine like terms: -43 + 43 = 0
0 + 16t + t2 = 0 + 43
16t + t2 = 0 + 43

Combine like terms: 0 + 43 = 43
16t + t2 = 43

The t term is 16t.  Take half its coefficient (8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
16t + 64 + t2 = 43 + 64

Reorder the terms:
64 + 16t + t2 = 43 + 64

Combine like terms: 43 + 64 = 107
64 + 16t + t2 = 107

Factor a perfect square on the left side:
(t + 8)(t + 8) = 107

Calculate the square root of the right side: 10.344080433

Break this problem into two subproblems by setting 
(t + 8) equal to 10.344080433 and -10.344080433.

Subproblem 1

t + 8 = 10.344080433 Simplifying t + 8 = 10.344080433 Reorder the terms: 8 + t = 10.344080433 Solving 8 + t = 10.344080433 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + t = 10.344080433 + -8 Combine like terms: 8 + -8 = 0 0 + t = 10.344080433 + -8 t = 10.344080433 + -8 Combine like terms: 10.344080433 + -8 = 2.344080433 t = 2.344080433 Simplifying t = 2.344080433

Subproblem 2

t + 8 = -10.344080433 Simplifying t + 8 = -10.344080433 Reorder the terms: 8 + t = -10.344080433 Solving 8 + t = -10.344080433 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + t = -10.344080433 + -8 Combine like terms: 8 + -8 = 0 0 + t = -10.344080433 + -8 t = -10.344080433 + -8 Combine like terms: -10.344080433 + -8 = -18.344080433 t = -18.344080433 Simplifying t = -18.344080433

Solution

The solution to the problem is based on the solutions from the subproblems. t = {2.344080433, -18.344080433}

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