5x^2+49x+112=0

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Solution for 5x^2+49x+112=0 equation:


Simplifying
5x2 + 49x + 112 = 0

Reorder the terms:
112 + 49x + 5x2 = 0

Solving
112 + 49x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
22.4 + 9.8x + x2 = 0

Move the constant term to the right:

Add '-22.4' to each side of the equation.
22.4 + 9.8x + -22.4 + x2 = 0 + -22.4

Reorder the terms:
22.4 + -22.4 + 9.8x + x2 = 0 + -22.4

Combine like terms: 22.4 + -22.4 = 0.0
0.0 + 9.8x + x2 = 0 + -22.4
9.8x + x2 = 0 + -22.4

Combine like terms: 0 + -22.4 = -22.4
9.8x + x2 = -22.4

The x term is 9.8x.  Take half its coefficient (4.9).
Square it (24.01) and add it to both sides.

Add '24.01' to each side of the equation.
9.8x + 24.01 + x2 = -22.4 + 24.01

Reorder the terms:
24.01 + 9.8x + x2 = -22.4 + 24.01

Combine like terms: -22.4 + 24.01 = 1.61
24.01 + 9.8x + x2 = 1.61

Factor a perfect square on the left side:
(x + 4.9)(x + 4.9) = 1.61

Calculate the square root of the right side: 1.268857754

Break this problem into two subproblems by setting 
(x + 4.9) equal to 1.268857754 and -1.268857754.

Subproblem 1

x + 4.9 = 1.268857754 Simplifying x + 4.9 = 1.268857754 Reorder the terms: 4.9 + x = 1.268857754 Solving 4.9 + x = 1.268857754 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.9' to each side of the equation. 4.9 + -4.9 + x = 1.268857754 + -4.9 Combine like terms: 4.9 + -4.9 = 0.0 0.0 + x = 1.268857754 + -4.9 x = 1.268857754 + -4.9 Combine like terms: 1.268857754 + -4.9 = -3.631142246 x = -3.631142246 Simplifying x = -3.631142246

Subproblem 2

x + 4.9 = -1.268857754 Simplifying x + 4.9 = -1.268857754 Reorder the terms: 4.9 + x = -1.268857754 Solving 4.9 + x = -1.268857754 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.9' to each side of the equation. 4.9 + -4.9 + x = -1.268857754 + -4.9 Combine like terms: 4.9 + -4.9 = 0.0 0.0 + x = -1.268857754 + -4.9 x = -1.268857754 + -4.9 Combine like terms: -1.268857754 + -4.9 = -6.168857754 x = -6.168857754 Simplifying x = -6.168857754

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-3.631142246, -6.168857754}

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