4x^2+16x+1=-12

Simple and best practice solution for 4x^2+16x+1=-12 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+1=-12 equation:


Simplifying
4x2 + 16x + 1 = -12

Reorder the terms:
1 + 16x + 4x2 = -12

Solving
1 + 16x + 4x2 = -12

Solving for variable 'x'.

Reorder the terms:
1 + 12 + 16x + 4x2 = -12 + 12

Combine like terms: 1 + 12 = 13
13 + 16x + 4x2 = -12 + 12

Combine like terms: -12 + 12 = 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 = 0.75
4 + 4x + x2 = 0.75

Factor a perfect square on the left side:
(x + 2)(x + 2) = 0.75

Calculate the square root of the right side: 0.866025404

Break this problem into two subproblems by setting 
(x + 2) equal to 0.866025404 and -0.866025404.

Subproblem 1

x + 2 = 0.866025404 Simplifying x + 2 = 0.866025404 Reorder the terms: 2 + x = 0.866025404 Solving 2 + x = 0.866025404 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 = 0.866025404 + -2 Combine like terms: 2 + -2 = 0 0 + x = 0.866025404 + -2 x = 0.866025404 + -2 Combine like terms: 0.866025404 + -2 = -1.133974596 x = -1.133974596 Simplifying x = -1.133974596

Subproblem 2

x + 2 = -0.866025404 Simplifying x + 2 = -0.866025404 Reorder the terms: 2 + x = -0.866025404 Solving 2 + x = -0.866025404 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 = -0.866025404 + -2 Combine like terms: 2 + -2 = 0 0 + x = -0.866025404 + -2 x = -0.866025404 + -2 Combine like terms: -0.866025404 + -2 = -2.866025404 x = -2.866025404 Simplifying x = -2.866025404

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-1.133974596, -2.866025404}

See similar equations:

| -5(1-3x)-4=-84 | | -7(z+4)+4z= | | 16/3c=17/5 | | 7x^2-2x+2=5x^2+x | | 5(2m+3)-3m=-2(4m+1)-13 | | 16+11x=10x+19 | | -9+4(3z-8)=8(-4z-5)+8 | | 12/8=l | | 1/2w-4/3=-3/4w-7 | | 1/9(x-1/9)=1/5(x-1/9) | | 2/3z-1/3=7/3 | | 7(1+y)=42 | | 3/4(8t) | | 6x^2+13=73 | | (4-i)+(8+5i)= | | 10x+8-7x=x-12 | | -3/2=-3/7y-7/3 | | (7x-2x/3)/(15y-y/3) | | 2b+2-4b=-4 | | 9/-3-3=-6 | | -5b-4-5=11 | | 14z-18=11z+12 | | (-3y-7)+11= | | 3t^2-4t-24=0 | | 1/8(24y+16)-9=-1/6(6y-54) | | 5x+7x-10=14 | | 64/12=a | | x^2+12x+36=-37 | | x^2+12x+36=37 | | 17=5+2y | | 9h-(h*h-4h+1)=38-h*h | | 7=(10*(2n))-10n |

Equations solver categories