x^2+0.7=2.4x

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Solution for x^2+0.7=2.4x equation:


Simplifying
x2 + 0.7 = 2.4x

Reorder the terms:
0.7 + x2 = 2.4x

Solving
0.7 + x2 = 2.4x

Solving for variable 'x'.

Reorder the terms:
0.7 + -2.4x + x2 = 2.4x + -2.4x

Combine like terms: 2.4x + -2.4x = 0.0
0.7 + -2.4x + x2 = 0.0

Begin completing the square.

Move the constant term to the right:

Add '-0.7' to each side of the equation.
0.7 + -2.4x + -0.7 + x2 = 0.0 + -0.7

Reorder the terms:
0.7 + -0.7 + -2.4x + x2 = 0.0 + -0.7

Combine like terms: 0.7 + -0.7 = 0.0
0.0 + -2.4x + x2 = 0.0 + -0.7
-2.4x + x2 = 0.0 + -0.7

Combine like terms: 0.0 + -0.7 = -0.7
-2.4x + x2 = -0.7

The x term is -2.4x.  Take half its coefficient (-1.2).
Square it (1.44) and add it to both sides.

Add '1.44' to each side of the equation.
-2.4x + 1.44 + x2 = -0.7 + 1.44

Reorder the terms:
1.44 + -2.4x + x2 = -0.7 + 1.44

Combine like terms: -0.7 + 1.44 = 0.74
1.44 + -2.4x + x2 = 0.74

Factor a perfect square on the left side:
(x + -1.2)(x + -1.2) = 0.74

Calculate the square root of the right side: 0.860232527

Break this problem into two subproblems by setting 
(x + -1.2) equal to 0.860232527 and -0.860232527.

Subproblem 1

x + -1.2 = 0.860232527 Simplifying x + -1.2 = 0.860232527 Reorder the terms: -1.2 + x = 0.860232527 Solving -1.2 + x = 0.860232527 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.2' to each side of the equation. -1.2 + 1.2 + x = 0.860232527 + 1.2 Combine like terms: -1.2 + 1.2 = 0.0 0.0 + x = 0.860232527 + 1.2 x = 0.860232527 + 1.2 Combine like terms: 0.860232527 + 1.2 = 2.060232527 x = 2.060232527 Simplifying x = 2.060232527

Subproblem 2

x + -1.2 = -0.860232527 Simplifying x + -1.2 = -0.860232527 Reorder the terms: -1.2 + x = -0.860232527 Solving -1.2 + x = -0.860232527 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.2' to each side of the equation. -1.2 + 1.2 + x = -0.860232527 + 1.2 Combine like terms: -1.2 + 1.2 = 0.0 0.0 + x = -0.860232527 + 1.2 x = -0.860232527 + 1.2 Combine like terms: -0.860232527 + 1.2 = 0.339767473 x = 0.339767473 Simplifying x = 0.339767473

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.060232527, 0.339767473}

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