f^2-10f=33

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Solution for f^2-10f=33 equation:


Simplifying
f2 + -10f = 33

Reorder the terms:
-10f + f2 = 33

Solving
-10f + f2 = 33

Solving for variable 'f'.

Reorder the terms:
-33 + -10f + f2 = 33 + -33

Combine like terms: 33 + -33 = 0
-33 + -10f + f2 = 0

Begin completing the square.

Move the constant term to the right:

Add '33' to each side of the equation.
-33 + -10f + 33 + f2 = 0 + 33

Reorder the terms:
-33 + 33 + -10f + f2 = 0 + 33

Combine like terms: -33 + 33 = 0
0 + -10f + f2 = 0 + 33
-10f + f2 = 0 + 33

Combine like terms: 0 + 33 = 33
-10f + f2 = 33

The f term is -10f.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10f + 25 + f2 = 33 + 25

Reorder the terms:
25 + -10f + f2 = 33 + 25

Combine like terms: 33 + 25 = 58
25 + -10f + f2 = 58

Factor a perfect square on the left side:
(f + -5)(f + -5) = 58

Calculate the square root of the right side: 7.615773106

Break this problem into two subproblems by setting 
(f + -5) equal to 7.615773106 and -7.615773106.

Subproblem 1

f + -5 = 7.615773106 Simplifying f + -5 = 7.615773106 Reorder the terms: -5 + f = 7.615773106 Solving -5 + f = 7.615773106 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + f = 7.615773106 + 5 Combine like terms: -5 + 5 = 0 0 + f = 7.615773106 + 5 f = 7.615773106 + 5 Combine like terms: 7.615773106 + 5 = 12.615773106 f = 12.615773106 Simplifying f = 12.615773106

Subproblem 2

f + -5 = -7.615773106 Simplifying f + -5 = -7.615773106 Reorder the terms: -5 + f = -7.615773106 Solving -5 + f = -7.615773106 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + f = -7.615773106 + 5 Combine like terms: -5 + 5 = 0 0 + f = -7.615773106 + 5 f = -7.615773106 + 5 Combine like terms: -7.615773106 + 5 = -2.615773106 f = -2.615773106 Simplifying f = -2.615773106

Solution

The solution to the problem is based on the solutions from the subproblems. f = {12.615773106, -2.615773106}

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