4x^2+16x=40

Simple and best practice solution for 4x^2+16x=40 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=40 equation:


Simplifying
4x2 + 16x = 40

Reorder the terms:
16x + 4x2 = 40

Solving
16x + 4x2 = 40

Solving for variable 'x'.

Reorder the terms:
-40 + 16x + 4x2 = 40 + -40

Combine like terms: 40 + -40 = 0
-40 + 16x + 4x2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(-10 + 4x + x2) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(-10 + 4x + x2)' equal to zero and attempt to solve: Simplifying -10 + 4x + x2 = 0 Solving -10 + 4x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '10' to each side of the equation. -10 + 4x + 10 + x2 = 0 + 10 Reorder the terms: -10 + 10 + 4x + x2 = 0 + 10 Combine like terms: -10 + 10 = 0 0 + 4x + x2 = 0 + 10 4x + x2 = 0 + 10 Combine like terms: 0 + 10 = 10 4x + x2 = 10 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 = 10 + 4 Reorder the terms: 4 + 4x + x2 = 10 + 4 Combine like terms: 10 + 4 = 14 4 + 4x + x2 = 14 Factor a perfect square on the left side: (x + 2)(x + 2) = 14 Calculate the square root of the right side: 3.741657387 Break this problem into two subproblems by setting (x + 2) equal to 3.741657387 and -3.741657387.

Subproblem 1

x + 2 = 3.741657387 Simplifying x + 2 = 3.741657387 Reorder the terms: 2 + x = 3.741657387 Solving 2 + x = 3.741657387 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 = 3.741657387 + -2 Combine like terms: 2 + -2 = 0 0 + x = 3.741657387 + -2 x = 3.741657387 + -2 Combine like terms: 3.741657387 + -2 = 1.741657387 x = 1.741657387 Simplifying x = 1.741657387

Subproblem 2

x + 2 = -3.741657387 Simplifying x + 2 = -3.741657387 Reorder the terms: 2 + x = -3.741657387 Solving 2 + x = -3.741657387 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 = -3.741657387 + -2 Combine like terms: 2 + -2 = 0 0 + x = -3.741657387 + -2 x = -3.741657387 + -2 Combine like terms: -3.741657387 + -2 = -5.741657387 x = -5.741657387 Simplifying x = -5.741657387

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.741657387, -5.741657387}

Solution

x = {1.741657387, -5.741657387}

See similar equations:

| 2x(5-3)-33x=5 | | (12x+4)= | | -3.5=-2.8 | | (x^8-1)(x^8-1)(x^8-1)= | | 10x^2y-36xy^2+32y^2= | | c-1=-2(x+6) | | x-.20x=23.20 | | 2z-43=45 | | 5(2-x)=125 | | 5-y=-13 | | 5(7z+4)=28-2z | | c-1=-2 | | -11=16-6q | | -2.80=-3.50 | | 8b+9=33 | | 12s=3(3s-9) | | -9v=-45 | | 7r-19=9 | | (4+9i)/(12i) | | 5a+5=30 | | Y=5-4(-2) | | 1.2d=5.5 | | 3(-2-3y)=-9y-4 | | -3v+8(v+9)=-12(5-2v)+3v | | x=4y+7 | | -2y+4=5-3y | | 20-3m=11 | | 4x-2(x-2)=2(x+1)+6 | | 2/3y-5x+5/6=9 | | 4x^2-24x+4=0 | | 3x-9-8x=-19 | | 8(n-5)-5n=-43 |

Equations solver categories