4x^2-35x=49

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Solution for 4x^2-35x=49 equation:


Simplifying
4x2 + -35x = 49

Reorder the terms:
-35x + 4x2 = 49

Solving
-35x + 4x2 = 49

Solving for variable 'x'.

Reorder the terms:
-49 + -35x + 4x2 = 49 + -49

Combine like terms: 49 + -49 = 0
-49 + -35x + 4x2 = 0

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

Divide each side by '4'.
-12.25 + -8.75x + x2 = 0

Move the constant term to the right:

Add '12.25' to each side of the equation.
-12.25 + -8.75x + 12.25 + x2 = 0 + 12.25

Reorder the terms:
-12.25 + 12.25 + -8.75x + x2 = 0 + 12.25

Combine like terms: -12.25 + 12.25 = 0.00
0.00 + -8.75x + x2 = 0 + 12.25
-8.75x + x2 = 0 + 12.25

Combine like terms: 0 + 12.25 = 12.25
-8.75x + x2 = 12.25

The x term is -8.75x.  Take half its coefficient (-4.375).
Square it (19.140625) and add it to both sides.

Add '19.140625' to each side of the equation.
-8.75x + 19.140625 + x2 = 12.25 + 19.140625

Reorder the terms:
19.140625 + -8.75x + x2 = 12.25 + 19.140625

Combine like terms: 12.25 + 19.140625 = 31.390625
19.140625 + -8.75x + x2 = 31.390625

Factor a perfect square on the left side:
(x + -4.375)(x + -4.375) = 31.390625

Calculate the square root of the right side: 5.602733708

Break this problem into two subproblems by setting 
(x + -4.375) equal to 5.602733708 and -5.602733708.

Subproblem 1

x + -4.375 = 5.602733708 Simplifying x + -4.375 = 5.602733708 Reorder the terms: -4.375 + x = 5.602733708 Solving -4.375 + x = 5.602733708 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.375' to each side of the equation. -4.375 + 4.375 + x = 5.602733708 + 4.375 Combine like terms: -4.375 + 4.375 = 0.000 0.000 + x = 5.602733708 + 4.375 x = 5.602733708 + 4.375 Combine like terms: 5.602733708 + 4.375 = 9.977733708 x = 9.977733708 Simplifying x = 9.977733708

Subproblem 2

x + -4.375 = -5.602733708 Simplifying x + -4.375 = -5.602733708 Reorder the terms: -4.375 + x = -5.602733708 Solving -4.375 + x = -5.602733708 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.375' to each side of the equation. -4.375 + 4.375 + x = -5.602733708 + 4.375 Combine like terms: -4.375 + 4.375 = 0.000 0.000 + x = -5.602733708 + 4.375 x = -5.602733708 + 4.375 Combine like terms: -5.602733708 + 4.375 = -1.227733708 x = -1.227733708 Simplifying x = -1.227733708

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.977733708, -1.227733708}

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