16t^2-35t+7=25

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Solution for 16t^2-35t+7=25 equation:


Simplifying
16t2 + -35t + 7 = 25

Reorder the terms:
7 + -35t + 16t2 = 25

Solving
7 + -35t + 16t2 = 25

Solving for variable 't'.

Reorder the terms:
7 + -25 + -35t + 16t2 = 25 + -25

Combine like terms: 7 + -25 = -18
-18 + -35t + 16t2 = 25 + -25

Combine like terms: 25 + -25 = 0
-18 + -35t + 16t2 = 0

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

Divide each side by '16'.
-1.125 + -2.1875t + t2 = 0

Move the constant term to the right:

Add '1.125' to each side of the equation.
-1.125 + -2.1875t + 1.125 + t2 = 0 + 1.125

Reorder the terms:
-1.125 + 1.125 + -2.1875t + t2 = 0 + 1.125

Combine like terms: -1.125 + 1.125 = 0.000
0.000 + -2.1875t + t2 = 0 + 1.125
-2.1875t + t2 = 0 + 1.125

Combine like terms: 0 + 1.125 = 1.125
-2.1875t + t2 = 1.125

The t term is -2.1875t.  Take half its coefficient (-1.09375).
Square it (1.196289063) and add it to both sides.

Add '1.196289063' to each side of the equation.
-2.1875t + 1.196289063 + t2 = 1.125 + 1.196289063

Reorder the terms:
1.196289063 + -2.1875t + t2 = 1.125 + 1.196289063

Combine like terms: 1.125 + 1.196289063 = 2.321289063
1.196289063 + -2.1875t + t2 = 2.321289063

Factor a perfect square on the left side:
(t + -1.09375)(t + -1.09375) = 2.321289063

Calculate the square root of the right side: 1.523577718

Break this problem into two subproblems by setting 
(t + -1.09375) equal to 1.523577718 and -1.523577718.

Subproblem 1

t + -1.09375 = 1.523577718 Simplifying t + -1.09375 = 1.523577718 Reorder the terms: -1.09375 + t = 1.523577718 Solving -1.09375 + t = 1.523577718 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.09375' to each side of the equation. -1.09375 + 1.09375 + t = 1.523577718 + 1.09375 Combine like terms: -1.09375 + 1.09375 = 0.00000 0.00000 + t = 1.523577718 + 1.09375 t = 1.523577718 + 1.09375 Combine like terms: 1.523577718 + 1.09375 = 2.617327718 t = 2.617327718 Simplifying t = 2.617327718

Subproblem 2

t + -1.09375 = -1.523577718 Simplifying t + -1.09375 = -1.523577718 Reorder the terms: -1.09375 + t = -1.523577718 Solving -1.09375 + t = -1.523577718 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '1.09375' to each side of the equation. -1.09375 + 1.09375 + t = -1.523577718 + 1.09375 Combine like terms: -1.09375 + 1.09375 = 0.00000 0.00000 + t = -1.523577718 + 1.09375 t = -1.523577718 + 1.09375 Combine like terms: -1.523577718 + 1.09375 = -0.429827718 t = -0.429827718 Simplifying t = -0.429827718

Solution

The solution to the problem is based on the solutions from the subproblems. t = {2.617327718, -0.429827718}

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