5t^2+6t=35

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Solution for 5t^2+6t=35 equation:


Simplifying
5t2 + 6t = 35

Reorder the terms:
6t + 5t2 = 35

Solving
6t + 5t2 = 35

Solving for variable 't'.

Reorder the terms:
-35 + 6t + 5t2 = 35 + -35

Combine like terms: 35 + -35 = 0
-35 + 6t + 5t2 = 0

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

Divide each side by '5'.
-7 + 1.2t + t2 = 0

Move the constant term to the right:

Add '7' to each side of the equation.
-7 + 1.2t + 7 + t2 = 0 + 7

Reorder the terms:
-7 + 7 + 1.2t + t2 = 0 + 7

Combine like terms: -7 + 7 = 0
0 + 1.2t + t2 = 0 + 7
1.2t + t2 = 0 + 7

Combine like terms: 0 + 7 = 7
1.2t + t2 = 7

The t term is 1.2t.  Take half its coefficient (0.6).
Square it (0.36) and add it to both sides.

Add '0.36' to each side of the equation.
1.2t + 0.36 + t2 = 7 + 0.36

Reorder the terms:
0.36 + 1.2t + t2 = 7 + 0.36

Combine like terms: 7 + 0.36 = 7.36
0.36 + 1.2t + t2 = 7.36

Factor a perfect square on the left side:
(t + 0.6)(t + 0.6) = 7.36

Calculate the square root of the right side: 2.712931993

Break this problem into two subproblems by setting 
(t + 0.6) equal to 2.712931993 and -2.712931993.

Subproblem 1

t + 0.6 = 2.712931993 Simplifying t + 0.6 = 2.712931993 Reorder the terms: 0.6 + t = 2.712931993 Solving 0.6 + t = 2.712931993 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.6' to each side of the equation. 0.6 + -0.6 + t = 2.712931993 + -0.6 Combine like terms: 0.6 + -0.6 = 0.0 0.0 + t = 2.712931993 + -0.6 t = 2.712931993 + -0.6 Combine like terms: 2.712931993 + -0.6 = 2.112931993 t = 2.112931993 Simplifying t = 2.112931993

Subproblem 2

t + 0.6 = -2.712931993 Simplifying t + 0.6 = -2.712931993 Reorder the terms: 0.6 + t = -2.712931993 Solving 0.6 + t = -2.712931993 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-0.6' to each side of the equation. 0.6 + -0.6 + t = -2.712931993 + -0.6 Combine like terms: 0.6 + -0.6 = 0.0 0.0 + t = -2.712931993 + -0.6 t = -2.712931993 + -0.6 Combine like terms: -2.712931993 + -0.6 = -3.312931993 t = -3.312931993 Simplifying t = -3.312931993

Solution

The solution to the problem is based on the solutions from the subproblems. t = {2.112931993, -3.312931993}

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