4x^2+20=10+35x

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Solution for 4x^2+20=10+35x equation:


Simplifying
4x2 + 20 = 10 + 35x

Reorder the terms:
20 + 4x2 = 10 + 35x

Solving
20 + 4x2 = 10 + 35x

Solving for variable 'x'.

Reorder the terms:
20 + -10 + -35x + 4x2 = 10 + 35x + -10 + -35x

Combine like terms: 20 + -10 = 10
10 + -35x + 4x2 = 10 + 35x + -10 + -35x

Reorder the terms:
10 + -35x + 4x2 = 10 + -10 + 35x + -35x

Combine like terms: 10 + -10 = 0
10 + -35x + 4x2 = 0 + 35x + -35x
10 + -35x + 4x2 = 35x + -35x

Combine like terms: 35x + -35x = 0
10 + -35x + 4x2 = 0

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

Divide each side by '4'.
2.5 + -8.75x + x2 = 0

Move the constant term to the right:

Add '-2.5' to each side of the equation.
2.5 + -8.75x + -2.5 + x2 = 0 + -2.5

Reorder the terms:
2.5 + -2.5 + -8.75x + x2 = 0 + -2.5

Combine like terms: 2.5 + -2.5 = 0.0
0.0 + -8.75x + x2 = 0 + -2.5
-8.75x + x2 = 0 + -2.5

Combine like terms: 0 + -2.5 = -2.5
-8.75x + x2 = -2.5

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 = -2.5 + 19.140625

Reorder the terms:
19.140625 + -8.75x + x2 = -2.5 + 19.140625

Combine like terms: -2.5 + 19.140625 = 16.640625
19.140625 + -8.75x + x2 = 16.640625

Factor a perfect square on the left side:
(x + -4.375)(x + -4.375) = 16.640625

Calculate the square root of the right side: 4.079292218

Break this problem into two subproblems by setting 
(x + -4.375) equal to 4.079292218 and -4.079292218.

Subproblem 1

x + -4.375 = 4.079292218 Simplifying x + -4.375 = 4.079292218 Reorder the terms: -4.375 + x = 4.079292218 Solving -4.375 + x = 4.079292218 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 = 4.079292218 + 4.375 Combine like terms: -4.375 + 4.375 = 0.000 0.000 + x = 4.079292218 + 4.375 x = 4.079292218 + 4.375 Combine like terms: 4.079292218 + 4.375 = 8.454292218 x = 8.454292218 Simplifying x = 8.454292218

Subproblem 2

x + -4.375 = -4.079292218 Simplifying x + -4.375 = -4.079292218 Reorder the terms: -4.375 + x = -4.079292218 Solving -4.375 + x = -4.079292218 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 = -4.079292218 + 4.375 Combine like terms: -4.375 + 4.375 = 0.000 0.000 + x = -4.079292218 + 4.375 x = -4.079292218 + 4.375 Combine like terms: -4.079292218 + 4.375 = 0.295707782 x = 0.295707782 Simplifying x = 0.295707782

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.454292218, 0.295707782}

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