m^2+4m-16=0

Simple and best practice solution for m^2+4m-16=0 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 m^2+4m-16=0 equation:


Simplifying
m2 + 4m + -16 = 0

Reorder the terms:
-16 + 4m + m2 = 0

Solving
-16 + 4m + m2 = 0

Solving for variable 'm'.

Begin completing the square.

Move the constant term to the right:

Add '16' to each side of the equation.
-16 + 4m + 16 + m2 = 0 + 16

Reorder the terms:
-16 + 16 + 4m + m2 = 0 + 16

Combine like terms: -16 + 16 = 0
0 + 4m + m2 = 0 + 16
4m + m2 = 0 + 16

Combine like terms: 0 + 16 = 16
4m + m2 = 16

The m term is 4m.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4m + 4 + m2 = 16 + 4

Reorder the terms:
4 + 4m + m2 = 16 + 4

Combine like terms: 16 + 4 = 20
4 + 4m + m2 = 20

Factor a perfect square on the left side:
(m + 2)(m + 2) = 20

Calculate the square root of the right side: 4.472135955

Break this problem into two subproblems by setting 
(m + 2) equal to 4.472135955 and -4.472135955.

Subproblem 1

m + 2 = 4.472135955 Simplifying m + 2 = 4.472135955 Reorder the terms: 2 + m = 4.472135955 Solving 2 + m = 4.472135955 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + m = 4.472135955 + -2 Combine like terms: 2 + -2 = 0 0 + m = 4.472135955 + -2 m = 4.472135955 + -2 Combine like terms: 4.472135955 + -2 = 2.472135955 m = 2.472135955 Simplifying m = 2.472135955

Subproblem 2

m + 2 = -4.472135955 Simplifying m + 2 = -4.472135955 Reorder the terms: 2 + m = -4.472135955 Solving 2 + m = -4.472135955 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + m = -4.472135955 + -2 Combine like terms: 2 + -2 = 0 0 + m = -4.472135955 + -2 m = -4.472135955 + -2 Combine like terms: -4.472135955 + -2 = -6.472135955 m = -6.472135955 Simplifying m = -6.472135955

Solution

The solution to the problem is based on the solutions from the subproblems. m = {2.472135955, -6.472135955}

See similar equations:

| 30=6b+9-b | | 4x+2x+8=34 | | 4(2x-24)=2x-9.6 | | 8y^2+14y-15= | | -13x=-2x^2 | | 4(2x+6)=5x+5+2 | | -0.1x+0.5y=1.3 | | 3(x+3.16)=2x | | 4.5+2.1x=85.1 | | 16z^2+20z-6= | | 4.7x-13=2.5x+9 | | 4.905t^2-7.625t+0.65=0 | | 3.6x+5-5.6x=7 | | 4.905t^2-7t+0.65=0 | | -6y=3.66 | | (x^2+36)=2 | | 6(x-7.1)=6.6 | | -2v+7=5v+14 | | 18h+483=21h+462 | | b-1=2.5 | | 9y-24=-3(-3+8) | | 5x^7-10x^6+35x^5=0 | | 0.6x+9=1.3x-3 | | 21x+6-23x=3-7 | | -5(1-5x)+5(-8x-2x)=4x-8x | | 20y^2-125=0 | | 9.1-4(m+3.2)=0 | | 9-9p-1=-9 | | 14-41=3(x-3)-6 | | (4-8i)+(2-5i)= | | -6(x+2)-11=10+3 | | x^4-5x^2+x=0 |

Equations solver categories