4x^2=16x+13

Simple and best practice solution for 4x^2=16x+13 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=16x+13 equation:


Simplifying
4x2 = 16x + 13

Reorder the terms:
4x2 = 13 + 16x

Solving
4x2 = 13 + 16x

Solving for variable 'x'.

Reorder the terms:
-13 + -16x + 4x2 = 13 + 16x + -13 + -16x

Reorder the terms:
-13 + -16x + 4x2 = 13 + -13 + 16x + -16x

Combine like terms: 13 + -13 = 0
-13 + -16x + 4x2 = 0 + 16x + -16x
-13 + -16x + 4x2 = 16x + -16x

Combine like terms: 16x + -16x = 0
-13 + -16x + 4x2 = 0

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

Divide each side by '4'.
-3.25 + -4x + x2 = 0

Move the constant term to the right:

Add '3.25' to each side of the equation.
-3.25 + -4x + 3.25 + x2 = 0 + 3.25

Reorder the terms:
-3.25 + 3.25 + -4x + x2 = 0 + 3.25

Combine like terms: -3.25 + 3.25 = 0.00
0.00 + -4x + x2 = 0 + 3.25
-4x + x2 = 0 + 3.25

Combine like terms: 0 + 3.25 = 3.25
-4x + x2 = 3.25

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 = 3.25 + 4

Reorder the terms:
4 + -4x + x2 = 3.25 + 4

Combine like terms: 3.25 + 4 = 7.25
4 + -4x + x2 = 7.25

Factor a perfect square on the left side:
(x + -2)(x + -2) = 7.25

Calculate the square root of the right side: 2.692582404

Break this problem into two subproblems by setting 
(x + -2) equal to 2.692582404 and -2.692582404.

Subproblem 1

x + -2 = 2.692582404 Simplifying x + -2 = 2.692582404 Reorder the terms: -2 + x = 2.692582404 Solving -2 + x = 2.692582404 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 = 2.692582404 + 2 Combine like terms: -2 + 2 = 0 0 + x = 2.692582404 + 2 x = 2.692582404 + 2 Combine like terms: 2.692582404 + 2 = 4.692582404 x = 4.692582404 Simplifying x = 4.692582404

Subproblem 2

x + -2 = -2.692582404 Simplifying x + -2 = -2.692582404 Reorder the terms: -2 + x = -2.692582404 Solving -2 + x = -2.692582404 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 = -2.692582404 + 2 Combine like terms: -2 + 2 = 0 0 + x = -2.692582404 + 2 x = -2.692582404 + 2 Combine like terms: -2.692582404 + 2 = -0.692582404 x = -0.692582404 Simplifying x = -0.692582404

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.692582404, -0.692582404}

See similar equations:

| x-(-3x+8)=-2 | | .05x+.12x(x+5000)=940 | | 4t+2=5(t+10) | | 152=64.977+3.144h | | P=5n+5z | | x^2/10-x/5+2=0 | | 2y^2-4y-8=-1y^2+1y | | x=5(3)-4 | | 4/3x=1/2 | | 152=72.572+2.533t | | x-8/5+8/5=-x/3 | | 5x+7=-x+3 | | 4(2x-1)=27-3(2x-5) | | 4p+5q=53 | | 3(5y-4)+2y=39 | | 2p-4(-2p+1)= | | x+0.08(20)=0.2(20+x) | | 5x=mx+y | | 5r-1-4r=r+7 | | 5p^2-25=4p^2+25 | | 8x-12-3a=9x-7 | | 19x+31+93-5x=180 | | 8x/3-2x/4=-13 | | -9=-2-k*8 | | 30-2(15-1)= | | A=2/3b-1 | | 2x-1=4x+x+5 | | 30-2*(15-1)= | | 5(x-7)-10x= | | 8y-4=4+8y | | x=0.5714285714 | | (7x+3)(9x^2+9x+5)= |

Equations solver categories