-3x^2+75x+10=

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Solution for -3x^2+75x+10= equation:


Simplifying
-3x2 + 75x + 10 = 0

Reorder the terms:
10 + 75x + -3x2 = 0

Solving
10 + 75x + -3x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-3 the coefficient of the squared term: 

Divide each side by '-3'.
-3.333333333 + -25x + x2 = 0

Move the constant term to the right:

Add '3.333333333' to each side of the equation.
-3.333333333 + -25x + 3.333333333 + x2 = 0 + 3.333333333

Reorder the terms:
-3.333333333 + 3.333333333 + -25x + x2 = 0 + 3.333333333

Combine like terms: -3.333333333 + 3.333333333 = 0.000000000
0.000000000 + -25x + x2 = 0 + 3.333333333
-25x + x2 = 0 + 3.333333333

Combine like terms: 0 + 3.333333333 = 3.333333333
-25x + x2 = 3.333333333

The x term is -25x.  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.
-25x + 156.25 + x2 = 3.333333333 + 156.25

Reorder the terms:
156.25 + -25x + x2 = 3.333333333 + 156.25

Combine like terms: 3.333333333 + 156.25 = 159.583333333
156.25 + -25x + x2 = 159.583333333

Factor a perfect square on the left side:
(x + -12.5)(x + -12.5) = 159.583333333

Calculate the square root of the right side: 12.632629708

Break this problem into two subproblems by setting 
(x + -12.5) equal to 12.632629708 and -12.632629708.

Subproblem 1

x + -12.5 = 12.632629708 Simplifying x + -12.5 = 12.632629708 Reorder the terms: -12.5 + x = 12.632629708 Solving -12.5 + x = 12.632629708 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12.5' to each side of the equation. -12.5 + 12.5 + x = 12.632629708 + 12.5 Combine like terms: -12.5 + 12.5 = 0.0 0.0 + x = 12.632629708 + 12.5 x = 12.632629708 + 12.5 Combine like terms: 12.632629708 + 12.5 = 25.132629708 x = 25.132629708 Simplifying x = 25.132629708

Subproblem 2

x + -12.5 = -12.632629708 Simplifying x + -12.5 = -12.632629708 Reorder the terms: -12.5 + x = -12.632629708 Solving -12.5 + x = -12.632629708 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12.5' to each side of the equation. -12.5 + 12.5 + x = -12.632629708 + 12.5 Combine like terms: -12.5 + 12.5 = 0.0 0.0 + x = -12.632629708 + 12.5 x = -12.632629708 + 12.5 Combine like terms: -12.632629708 + 12.5 = -0.132629708 x = -0.132629708 Simplifying x = -0.132629708

Solution

The solution to the problem is based on the solutions from the subproblems. x = {25.132629708, -0.132629708}

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