t^2+14t+49=45

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Solution for t^2+14t+49=45 equation:


Simplifying
t2 + 14t + 49 = 45

Reorder the terms:
49 + 14t + t2 = 45

Solving
49 + 14t + t2 = 45

Solving for variable 't'.

Reorder the terms:
49 + -45 + 14t + t2 = 45 + -45

Combine like terms: 49 + -45 = 4
4 + 14t + t2 = 45 + -45

Combine like terms: 45 + -45 = 0
4 + 14t + t2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + 14t + -4 + t2 = 0 + -4

Reorder the terms:
4 + -4 + 14t + t2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + 14t + t2 = 0 + -4
14t + t2 = 0 + -4

Combine like terms: 0 + -4 = -4
14t + t2 = -4

The t term is 14t.  Take half its coefficient (7).
Square it (49) and add it to both sides.

Add '49' to each side of the equation.
14t + 49 + t2 = -4 + 49

Reorder the terms:
49 + 14t + t2 = -4 + 49

Combine like terms: -4 + 49 = 45
49 + 14t + t2 = 45

Factor a perfect square on the left side:
(t + 7)(t + 7) = 45

Calculate the square root of the right side: 6.708203933

Break this problem into two subproblems by setting 
(t + 7) equal to 6.708203933 and -6.708203933.

Subproblem 1

t + 7 = 6.708203933 Simplifying t + 7 = 6.708203933 Reorder the terms: 7 + t = 6.708203933 Solving 7 + t = 6.708203933 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + t = 6.708203933 + -7 Combine like terms: 7 + -7 = 0 0 + t = 6.708203933 + -7 t = 6.708203933 + -7 Combine like terms: 6.708203933 + -7 = -0.291796067 t = -0.291796067 Simplifying t = -0.291796067

Subproblem 2

t + 7 = -6.708203933 Simplifying t + 7 = -6.708203933 Reorder the terms: 7 + t = -6.708203933 Solving 7 + t = -6.708203933 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + t = -6.708203933 + -7 Combine like terms: 7 + -7 = 0 0 + t = -6.708203933 + -7 t = -6.708203933 + -7 Combine like terms: -6.708203933 + -7 = -13.708203933 t = -13.708203933 Simplifying t = -13.708203933

Solution

The solution to the problem is based on the solutions from the subproblems. t = {-0.291796067, -13.708203933}

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