4t^2+3t-35=0

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Solution for 4t^2+3t-35=0 equation:


Simplifying
4t2 + 3t + -35 = 0

Reorder the terms:
-35 + 3t + 4t2 = 0

Solving
-35 + 3t + 4t2 = 0

Solving for variable 't'.

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

Divide each side by '4'.
-8.75 + 0.75t + t2 = 0

Move the constant term to the right:

Add '8.75' to each side of the equation.
-8.75 + 0.75t + 8.75 + t2 = 0 + 8.75

Reorder the terms:
-8.75 + 8.75 + 0.75t + t2 = 0 + 8.75

Combine like terms: -8.75 + 8.75 = 0.00
0.00 + 0.75t + t2 = 0 + 8.75
0.75t + t2 = 0 + 8.75

Combine like terms: 0 + 8.75 = 8.75
0.75t + t2 = 8.75

The t term is 0.75t.  Take half its coefficient (0.375).
Square it (0.140625) and add it to both sides.

Add '0.140625' to each side of the equation.
0.75t + 0.140625 + t2 = 8.75 + 0.140625

Reorder the terms:
0.140625 + 0.75t + t2 = 8.75 + 0.140625

Combine like terms: 8.75 + 0.140625 = 8.890625
0.140625 + 0.75t + t2 = 8.890625

Factor a perfect square on the left side:
(t + 0.375)(t + 0.375) = 8.890625

Calculate the square root of the right side: 2.98171511

Break this problem into two subproblems by setting 
(t + 0.375) equal to 2.98171511 and -2.98171511.

Subproblem 1

t + 0.375 = 2.98171511 Simplifying t + 0.375 = 2.98171511 Reorder the terms: 0.375 + t = 2.98171511 Solving 0.375 + t = 2.98171511 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.375' to each side of the equation. 0.375 + -0.375 + t = 2.98171511 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + t = 2.98171511 + -0.375 t = 2.98171511 + -0.375 Combine like terms: 2.98171511 + -0.375 = 2.60671511 t = 2.60671511 Simplifying t = 2.60671511

Subproblem 2

t + 0.375 = -2.98171511 Simplifying t + 0.375 = -2.98171511 Reorder the terms: 0.375 + t = -2.98171511 Solving 0.375 + t = -2.98171511 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.375' to each side of the equation. 0.375 + -0.375 + t = -2.98171511 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + t = -2.98171511 + -0.375 t = -2.98171511 + -0.375 Combine like terms: -2.98171511 + -0.375 = -3.35671511 t = -3.35671511 Simplifying t = -3.35671511

Solution

The solution to the problem is based on the solutions from the subproblems. t = {2.60671511, -3.35671511}

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