m^2+7m-12=

Simple and best practice solution for m^2+7m-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 m^2+7m-12= equation:


Simplifying
m2 + 7m + -12 = 0

Reorder the terms:
-12 + 7m + m2 = 0

Solving
-12 + 7m + m2 = 0

Solving for variable 'm'.

Begin completing the square.

Move the constant term to the right:

Add '12' to each side of the equation.
-12 + 7m + 12 + m2 = 0 + 12

Reorder the terms:
-12 + 12 + 7m + m2 = 0 + 12

Combine like terms: -12 + 12 = 0
0 + 7m + m2 = 0 + 12
7m + m2 = 0 + 12

Combine like terms: 0 + 12 = 12
7m + m2 = 12

The m term is 7m.  Take half its coefficient (3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
7m + 12.25 + m2 = 12 + 12.25

Reorder the terms:
12.25 + 7m + m2 = 12 + 12.25

Combine like terms: 12 + 12.25 = 24.25
12.25 + 7m + m2 = 24.25

Factor a perfect square on the left side:
(m + 3.5)(m + 3.5) = 24.25

Calculate the square root of the right side: 4.924428901

Break this problem into two subproblems by setting 
(m + 3.5) equal to 4.924428901 and -4.924428901.

Subproblem 1

m + 3.5 = 4.924428901 Simplifying m + 3.5 = 4.924428901 Reorder the terms: 3.5 + m = 4.924428901 Solving 3.5 + m = 4.924428901 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + m = 4.924428901 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + m = 4.924428901 + -3.5 m = 4.924428901 + -3.5 Combine like terms: 4.924428901 + -3.5 = 1.424428901 m = 1.424428901 Simplifying m = 1.424428901

Subproblem 2

m + 3.5 = -4.924428901 Simplifying m + 3.5 = -4.924428901 Reorder the terms: 3.5 + m = -4.924428901 Solving 3.5 + m = -4.924428901 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + m = -4.924428901 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + m = -4.924428901 + -3.5 m = -4.924428901 + -3.5 Combine like terms: -4.924428901 + -3.5 = -8.424428901 m = -8.424428901 Simplifying m = -8.424428901

Solution

The solution to the problem is based on the solutions from the subproblems. m = {1.424428901, -8.424428901}

See similar equations:

| 7/3=2w | | 4(x+1)-11=53 | | 5(x+1)-11=53 | | -6(x+1)-11=53 | | 60=-16x^2+85x | | x+2/3-1/2=x/3-2(x-2)/3 | | -3x-3(-5x-17)=17 | | -4h+16=22+2 | | 12+2(3p-4)=22 | | 11-6m-20=20-5m | | 5x+3=6x-14 | | 3b+2(b-3)=91.50 | | 8x-(-2+3)=11 | | 1/4(x-4)+x=14 | | 6x-12-3=x+27-9x | | 5/10+7/3 | | (2x-3)(x^3-x^2+3x+5)=0 | | 2x-2x+3=8 | | 72/x=8 | | 7=6q/4+8/4 | | 7*x=49 | | R-1/2(4R+2)=0 | | 80/x=8 | | x^3+14x^2-9x-324=0 | | 2x+x+4+x+x+x-x-3=92 | | 2(r+1)=9 | | -6.3(x+3.7)+7.65x=-1.1x-38.99 | | 2x/5=-8 | | 7x-14y=7 | | 7x+-14y=7 | | f-8-3f=37f+4 | | 3y-3=5y-5 |

Equations solver categories