4x^2+7x+2=3x^2+3x+17

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Solution for 4x^2+7x+2=3x^2+3x+17 equation:


Simplifying
4x2 + 7x + 2 = 3x2 + 3x + 17

Reorder the terms:
2 + 7x + 4x2 = 3x2 + 3x + 17

Reorder the terms:
2 + 7x + 4x2 = 17 + 3x + 3x2

Solving
2 + 7x + 4x2 = 17 + 3x + 3x2

Solving for variable 'x'.

Reorder the terms:
2 + -17 + 7x + -3x + 4x2 + -3x2 = 17 + 3x + 3x2 + -17 + -3x + -3x2

Combine like terms: 2 + -17 = -15
-15 + 7x + -3x + 4x2 + -3x2 = 17 + 3x + 3x2 + -17 + -3x + -3x2

Combine like terms: 7x + -3x = 4x
-15 + 4x + 4x2 + -3x2 = 17 + 3x + 3x2 + -17 + -3x + -3x2

Combine like terms: 4x2 + -3x2 = 1x2
-15 + 4x + 1x2 = 17 + 3x + 3x2 + -17 + -3x + -3x2

Reorder the terms:
-15 + 4x + 1x2 = 17 + -17 + 3x + -3x + 3x2 + -3x2

Combine like terms: 17 + -17 = 0
-15 + 4x + 1x2 = 0 + 3x + -3x + 3x2 + -3x2
-15 + 4x + 1x2 = 3x + -3x + 3x2 + -3x2

Combine like terms: 3x + -3x = 0
-15 + 4x + 1x2 = 0 + 3x2 + -3x2
-15 + 4x + 1x2 = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
-15 + 4x + 1x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '15' to each side of the equation.
-15 + 4x + 15 + x2 = 0 + 15

Reorder the terms:
-15 + 15 + 4x + x2 = 0 + 15

Combine like terms: -15 + 15 = 0
0 + 4x + x2 = 0 + 15
4x + x2 = 0 + 15

Combine like terms: 0 + 15 = 15
4x + x2 = 15

The x term is 4x.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4x + 4 + x2 = 15 + 4

Reorder the terms:
4 + 4x + x2 = 15 + 4

Combine like terms: 15 + 4 = 19
4 + 4x + x2 = 19

Factor a perfect square on the left side:
(x + 2)(x + 2) = 19

Calculate the square root of the right side: 4.358898944

Break this problem into two subproblems by setting 
(x + 2) equal to 4.358898944 and -4.358898944.

Subproblem 1

x + 2 = 4.358898944 Simplifying x + 2 = 4.358898944 Reorder the terms: 2 + x = 4.358898944 Solving 2 + x = 4.358898944 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 4.358898944 + -2 Combine like terms: 2 + -2 = 0 0 + x = 4.358898944 + -2 x = 4.358898944 + -2 Combine like terms: 4.358898944 + -2 = 2.358898944 x = 2.358898944 Simplifying x = 2.358898944

Subproblem 2

x + 2 = -4.358898944 Simplifying x + 2 = -4.358898944 Reorder the terms: 2 + x = -4.358898944 Solving 2 + x = -4.358898944 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = -4.358898944 + -2 Combine like terms: 2 + -2 = 0 0 + x = -4.358898944 + -2 x = -4.358898944 + -2 Combine like terms: -4.358898944 + -2 = -6.358898944 x = -6.358898944 Simplifying x = -6.358898944

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.358898944, -6.358898944}

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