4x^2+2x=17

Simple and best practice solution for 4x^2+2x=17 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

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


Simplifying
4x2 + 2x = 17

Reorder the terms:
2x + 4x2 = 17

Solving
2x + 4x2 = 17

Solving for variable 'x'.

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

Combine like terms: 17 + -17 = 0
-17 + 2x + 4x2 = 0

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

Divide each side by '4'.
-4.25 + 0.5x + x2 = 0

Move the constant term to the right:

Add '4.25' to each side of the equation.
-4.25 + 0.5x + 4.25 + x2 = 0 + 4.25

Reorder the terms:
-4.25 + 4.25 + 0.5x + x2 = 0 + 4.25

Combine like terms: -4.25 + 4.25 = 0.00
0.00 + 0.5x + x2 = 0 + 4.25
0.5x + x2 = 0 + 4.25

Combine like terms: 0 + 4.25 = 4.25
0.5x + x2 = 4.25

The x term is 0.5x.  Take half its coefficient (0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
0.5x + 0.0625 + x2 = 4.25 + 0.0625

Reorder the terms:
0.0625 + 0.5x + x2 = 4.25 + 0.0625

Combine like terms: 4.25 + 0.0625 = 4.3125
0.0625 + 0.5x + x2 = 4.3125

Factor a perfect square on the left side:
(x + 0.25)(x + 0.25) = 4.3125

Calculate the square root of the right side: 2.076655966

Break this problem into two subproblems by setting 
(x + 0.25) equal to 2.076655966 and -2.076655966.

Subproblem 1

x + 0.25 = 2.076655966 Simplifying x + 0.25 = 2.076655966 Reorder the terms: 0.25 + x = 2.076655966 Solving 0.25 + x = 2.076655966 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + x = 2.076655966 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + x = 2.076655966 + -0.25 x = 2.076655966 + -0.25 Combine like terms: 2.076655966 + -0.25 = 1.826655966 x = 1.826655966 Simplifying x = 1.826655966

Subproblem 2

x + 0.25 = -2.076655966 Simplifying x + 0.25 = -2.076655966 Reorder the terms: 0.25 + x = -2.076655966 Solving 0.25 + x = -2.076655966 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + x = -2.076655966 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + x = -2.076655966 + -0.25 x = -2.076655966 + -0.25 Combine like terms: -2.076655966 + -0.25 = -2.326655966 x = -2.326655966 Simplifying x = -2.326655966

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.826655966, -2.326655966}

See similar equations:

| 7x+4=6x | | 2x^2-8x=1 | | 6p+9=5p | | 5(b+2)=3(b+8) | | 23+a+140=180 | | c^2-4=0 | | -77=12b-15 | | 17d+8=9d+80 | | 33x(x+4)=4620 | | 6x+12=-132-10x | | x-11+9=4 | | 3x-9=-18 | | 6x^4-18x^3-318x^2-54x= | | 2x^2+14x-1=0 | | 147-5x=5x+7 | | -3(4-2x)+1=25 | | 4.5+2x=-7.5 | | 4-3x=7X-2(3-x) | | a+40+2a+a-20=180 | | 5(4z-1)-3(z+9)=14(z+1) | | 8+99w=11 | | y+5=2y-5 | | -(5y+5)-(4y+8)=0 | | 9x+4-x-8= | | -5(t-4)-(t+8)=3 | | -x-1.5=4.5 | | 5a=15-a | | X^2+10X+1=0 | | 5i+9=i-23 | | -9.6-2x=10.8 | | 68=5n+43 | | 2x-4=9x+25 |

Equations solver categories