-x^2+64x+75=

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Solution for -x^2+64x+75= equation:


Simplifying
-1x2 + 64x + 75 = 0

Reorder the terms:
75 + 64x + -1x2 = 0

Solving
75 + 64x + -1x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-75 + -64x + x2 = 0

Move the constant term to the right:

Add '75' to each side of the equation.
-75 + -64x + 75 + x2 = 0 + 75

Reorder the terms:
-75 + 75 + -64x + x2 = 0 + 75

Combine like terms: -75 + 75 = 0
0 + -64x + x2 = 0 + 75
-64x + x2 = 0 + 75

Combine like terms: 0 + 75 = 75
-64x + x2 = 75

The x term is -64x.  Take half its coefficient (-32).
Square it (1024) and add it to both sides.

Add '1024' to each side of the equation.
-64x + 1024 + x2 = 75 + 1024

Reorder the terms:
1024 + -64x + x2 = 75 + 1024

Combine like terms: 75 + 1024 = 1099
1024 + -64x + x2 = 1099

Factor a perfect square on the left side:
(x + -32)(x + -32) = 1099

Calculate the square root of the right side: 33.151168909

Break this problem into two subproblems by setting 
(x + -32) equal to 33.151168909 and -33.151168909.

Subproblem 1

x + -32 = 33.151168909 Simplifying x + -32 = 33.151168909 Reorder the terms: -32 + x = 33.151168909 Solving -32 + x = 33.151168909 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '32' to each side of the equation. -32 + 32 + x = 33.151168909 + 32 Combine like terms: -32 + 32 = 0 0 + x = 33.151168909 + 32 x = 33.151168909 + 32 Combine like terms: 33.151168909 + 32 = 65.151168909 x = 65.151168909 Simplifying x = 65.151168909

Subproblem 2

x + -32 = -33.151168909 Simplifying x + -32 = -33.151168909 Reorder the terms: -32 + x = -33.151168909 Solving -32 + x = -33.151168909 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '32' to each side of the equation. -32 + 32 + x = -33.151168909 + 32 Combine like terms: -32 + 32 = 0 0 + x = -33.151168909 + 32 x = -33.151168909 + 32 Combine like terms: -33.151168909 + 32 = -1.151168909 x = -1.151168909 Simplifying x = -1.151168909

Solution

The solution to the problem is based on the solutions from the subproblems. x = {65.151168909, -1.151168909}

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