2t^2+5t-63=63

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Solution for 2t^2+5t-63=63 equation:


Simplifying
2t2 + 5t + -63 = 63

Reorder the terms:
-63 + 5t + 2t2 = 63

Solving
-63 + 5t + 2t2 = 63

Solving for variable 't'.

Reorder the terms:
-63 + -63 + 5t + 2t2 = 63 + -63

Combine like terms: -63 + -63 = -126
-126 + 5t + 2t2 = 63 + -63

Combine like terms: 63 + -63 = 0
-126 + 5t + 2t2 = 0

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

Divide each side by '2'.
-63 + 2.5t + t2 = 0

Move the constant term to the right:

Add '63' to each side of the equation.
-63 + 2.5t + 63 + t2 = 0 + 63

Reorder the terms:
-63 + 63 + 2.5t + t2 = 0 + 63

Combine like terms: -63 + 63 = 0
0 + 2.5t + t2 = 0 + 63
2.5t + t2 = 0 + 63

Combine like terms: 0 + 63 = 63
2.5t + t2 = 63

The t term is 2.5t.  Take half its coefficient (1.25).
Square it (1.5625) and add it to both sides.

Add '1.5625' to each side of the equation.
2.5t + 1.5625 + t2 = 63 + 1.5625

Reorder the terms:
1.5625 + 2.5t + t2 = 63 + 1.5625

Combine like terms: 63 + 1.5625 = 64.5625
1.5625 + 2.5t + t2 = 64.5625

Factor a perfect square on the left side:
(t + 1.25)(t + 1.25) = 64.5625

Calculate the square root of the right side: 8.03507934

Break this problem into two subproblems by setting 
(t + 1.25) equal to 8.03507934 and -8.03507934.

Subproblem 1

t + 1.25 = 8.03507934 Simplifying t + 1.25 = 8.03507934 Reorder the terms: 1.25 + t = 8.03507934 Solving 1.25 + t = 8.03507934 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + t = 8.03507934 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + t = 8.03507934 + -1.25 t = 8.03507934 + -1.25 Combine like terms: 8.03507934 + -1.25 = 6.78507934 t = 6.78507934 Simplifying t = 6.78507934

Subproblem 2

t + 1.25 = -8.03507934 Simplifying t + 1.25 = -8.03507934 Reorder the terms: 1.25 + t = -8.03507934 Solving 1.25 + t = -8.03507934 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + t = -8.03507934 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + t = -8.03507934 + -1.25 t = -8.03507934 + -1.25 Combine like terms: -8.03507934 + -1.25 = -9.28507934 t = -9.28507934 Simplifying t = -9.28507934

Solution

The solution to the problem is based on the solutions from the subproblems. t = {6.78507934, -9.28507934}

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