a^2-25a+35=0

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Solution for a^2-25a+35=0 equation:


Simplifying
a2 + -25a + 35 = 0

Reorder the terms:
35 + -25a + a2 = 0

Solving
35 + -25a + a2 = 0

Solving for variable 'a'.

Begin completing the square.

Move the constant term to the right:

Add '-35' to each side of the equation.
35 + -25a + -35 + a2 = 0 + -35

Reorder the terms:
35 + -35 + -25a + a2 = 0 + -35

Combine like terms: 35 + -35 = 0
0 + -25a + a2 = 0 + -35
-25a + a2 = 0 + -35

Combine like terms: 0 + -35 = -35
-25a + a2 = -35

The a term is -25a.  Take half its coefficient (-12.5).
Square it (156.25) and add it to both sides.

Add '156.25' to each side of the equation.
-25a + 156.25 + a2 = -35 + 156.25

Reorder the terms:
156.25 + -25a + a2 = -35 + 156.25

Combine like terms: -35 + 156.25 = 121.25
156.25 + -25a + a2 = 121.25

Factor a perfect square on the left side:
(a + -12.5)(a + -12.5) = 121.25

Calculate the square root of the right side: 11.011357773

Break this problem into two subproblems by setting 
(a + -12.5) equal to 11.011357773 and -11.011357773.

Subproblem 1

a + -12.5 = 11.011357773 Simplifying a + -12.5 = 11.011357773 Reorder the terms: -12.5 + a = 11.011357773 Solving -12.5 + a = 11.011357773 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '12.5' to each side of the equation. -12.5 + 12.5 + a = 11.011357773 + 12.5 Combine like terms: -12.5 + 12.5 = 0.0 0.0 + a = 11.011357773 + 12.5 a = 11.011357773 + 12.5 Combine like terms: 11.011357773 + 12.5 = 23.511357773 a = 23.511357773 Simplifying a = 23.511357773

Subproblem 2

a + -12.5 = -11.011357773 Simplifying a + -12.5 = -11.011357773 Reorder the terms: -12.5 + a = -11.011357773 Solving -12.5 + a = -11.011357773 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '12.5' to each side of the equation. -12.5 + 12.5 + a = -11.011357773 + 12.5 Combine like terms: -12.5 + 12.5 = 0.0 0.0 + a = -11.011357773 + 12.5 a = -11.011357773 + 12.5 Combine like terms: -11.011357773 + 12.5 = 1.488642227 a = 1.488642227 Simplifying a = 1.488642227

Solution

The solution to the problem is based on the solutions from the subproblems. a = {23.511357773, 1.488642227}

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