t^2+8t-3=0

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Solution for t^2+8t-3=0 equation:


Simplifying
t2 + 8t + -3 = 0

Reorder the terms:
-3 + 8t + t2 = 0

Solving
-3 + 8t + t2 = 0

Solving for variable 't'.

Begin completing the square.

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + 8t + 3 + t2 = 0 + 3

Reorder the terms:
-3 + 3 + 8t + t2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 8t + t2 = 0 + 3
8t + t2 = 0 + 3

Combine like terms: 0 + 3 = 3
8t + t2 = 3

The t term is 8t.  Take half its coefficient (4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
8t + 16 + t2 = 3 + 16

Reorder the terms:
16 + 8t + t2 = 3 + 16

Combine like terms: 3 + 16 = 19
16 + 8t + t2 = 19

Factor a perfect square on the left side:
(t + 4)(t + 4) = 19

Calculate the square root of the right side: 4.358898944

Break this problem into two subproblems by setting 
(t + 4) equal to 4.358898944 and -4.358898944.

Subproblem 1

t + 4 = 4.358898944 Simplifying t + 4 = 4.358898944 Reorder the terms: 4 + t = 4.358898944 Solving 4 + t = 4.358898944 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + t = 4.358898944 + -4 Combine like terms: 4 + -4 = 0 0 + t = 4.358898944 + -4 t = 4.358898944 + -4 Combine like terms: 4.358898944 + -4 = 0.358898944 t = 0.358898944 Simplifying t = 0.358898944

Subproblem 2

t + 4 = -4.358898944 Simplifying t + 4 = -4.358898944 Reorder the terms: 4 + t = -4.358898944 Solving 4 + t = -4.358898944 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + t = -4.358898944 + -4 Combine like terms: 4 + -4 = 0 0 + t = -4.358898944 + -4 t = -4.358898944 + -4 Combine like terms: -4.358898944 + -4 = -8.358898944 t = -8.358898944 Simplifying t = -8.358898944

Solution

The solution to the problem is based on the solutions from the subproblems. t = {0.358898944, -8.358898944}

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