4x^2=16x+28

Simple and best practice solution for 4x^2=16x+28 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+28 equation:


Simplifying
4x2 = 16x + 28

Reorder the terms:
4x2 = 28 + 16x

Solving
4x2 = 28 + 16x

Solving for variable 'x'.

Reorder the terms:
-28 + -16x + 4x2 = 28 + 16x + -28 + -16x

Reorder the terms:
-28 + -16x + 4x2 = 28 + -28 + 16x + -16x

Combine like terms: 28 + -28 = 0
-28 + -16x + 4x2 = 0 + 16x + -16x
-28 + -16x + 4x2 = 16x + -16x

Combine like terms: 16x + -16x = 0
-28 + -16x + 4x2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(-7 + -4x + x2) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(-7 + -4x + x2)' equal to zero and attempt to solve: Simplifying -7 + -4x + x2 = 0 Solving -7 + -4x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '7' to each side of the equation. -7 + -4x + 7 + x2 = 0 + 7 Reorder the terms: -7 + 7 + -4x + x2 = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -4x + x2 = 0 + 7 -4x + x2 = 0 + 7 Combine like terms: 0 + 7 = 7 -4x + x2 = 7 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 = 7 + 4 Reorder the terms: 4 + -4x + x2 = 7 + 4 Combine like terms: 7 + 4 = 11 4 + -4x + x2 = 11 Factor a perfect square on the left side: (x + -2)(x + -2) = 11 Calculate the square root of the right side: 3.31662479 Break this problem into two subproblems by setting (x + -2) equal to 3.31662479 and -3.31662479.

Subproblem 1

x + -2 = 3.31662479 Simplifying x + -2 = 3.31662479 Reorder the terms: -2 + x = 3.31662479 Solving -2 + x = 3.31662479 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 = 3.31662479 + 2 Combine like terms: -2 + 2 = 0 0 + x = 3.31662479 + 2 x = 3.31662479 + 2 Combine like terms: 3.31662479 + 2 = 5.31662479 x = 5.31662479 Simplifying x = 5.31662479

Subproblem 2

x + -2 = -3.31662479 Simplifying x + -2 = -3.31662479 Reorder the terms: -2 + x = -3.31662479 Solving -2 + x = -3.31662479 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 = -3.31662479 + 2 Combine like terms: -2 + 2 = 0 0 + x = -3.31662479 + 2 x = -3.31662479 + 2 Combine like terms: -3.31662479 + 2 = -1.31662479 x = -1.31662479 Simplifying x = -1.31662479

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.31662479, -1.31662479}

Solution

x = {5.31662479, -1.31662479}

See similar equations:

| 4x-2=6+8x | | 2x^2-5x-12=-3x | | 4(2x-3)=4x+12 | | 10+(-15)-5=-5 | | 8z=128 | | 8x-10=7x | | 7k-8k=-15 | | 2x+3(8-2*4)=14 | | 3(t+3)=27 | | 8x-31=3x+5 | | 3n+27=9n+3 | | 10X+31-4x=7 | | 14-4x=30 | | -7-3x-4x=70 | | 2(3-x)=22+2x | | -6+3=21 | | (5x-1)(x-2)= | | 4(-1)-0=4 | | 5f+2-4=2f-4f-8 | | 6-3x=33 | | 4(-1)0=4 | | 3(4+x)=2(x-1) | | -1=-1-7(0) | | x^5-4x^4+5x^3-2x^2=0 | | -2x-15x+55=-13 | | 4x+6=-18 | | 4(-1)+6(-5)=16 | | 57+2x+14x=89 | | -11x-2x=-52 | | -5(1)+5(-5)=-20 | | 56s-17s=3 | | 5x=5(-3+2x) |

Equations solver categories