9m^2-3m=8

Simple and best practice solution for 9m^2-3m=8 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 9m^2-3m=8 equation:


Simplifying
9m2 + -3m = 8

Reorder the terms:
-3m + 9m2 = 8

Solving
-3m + 9m2 = 8

Solving for variable 'm'.

Reorder the terms:
-8 + -3m + 9m2 = 8 + -8

Combine like terms: 8 + -8 = 0
-8 + -3m + 9m2 = 0

Begin completing the square.  Divide all terms by
9 the coefficient of the squared term: 

Divide each side by '9'.
-0.8888888889 + -0.3333333333m + m2 = 0

Move the constant term to the right:

Add '0.8888888889' to each side of the equation.
-0.8888888889 + -0.3333333333m + 0.8888888889 + m2 = 0 + 0.8888888889

Reorder the terms:
-0.8888888889 + 0.8888888889 + -0.3333333333m + m2 = 0 + 0.8888888889

Combine like terms: -0.8888888889 + 0.8888888889 = 0.0000000000
0.0000000000 + -0.3333333333m + m2 = 0 + 0.8888888889
-0.3333333333m + m2 = 0 + 0.8888888889

Combine like terms: 0 + 0.8888888889 = 0.8888888889
-0.3333333333m + m2 = 0.8888888889

The m term is -0.3333333333m.  Take half its coefficient (-0.1666666667).
Square it (0.02777777779) and add it to both sides.

Add '0.02777777779' to each side of the equation.
-0.3333333333m + 0.02777777779 + m2 = 0.8888888889 + 0.02777777779

Reorder the terms:
0.02777777779 + -0.3333333333m + m2 = 0.8888888889 + 0.02777777779

Combine like terms: 0.8888888889 + 0.02777777779 = 0.91666666669
0.02777777779 + -0.3333333333m + m2 = 0.91666666669

Factor a perfect square on the left side:
(m + -0.1666666667)(m + -0.1666666667) = 0.91666666669

Calculate the square root of the right side: 0.957427108

Break this problem into two subproblems by setting 
(m + -0.1666666667) equal to 0.957427108 and -0.957427108.

Subproblem 1

m + -0.1666666667 = 0.957427108 Simplifying m + -0.1666666667 = 0.957427108 Reorder the terms: -0.1666666667 + m = 0.957427108 Solving -0.1666666667 + m = 0.957427108 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '0.1666666667' to each side of the equation. -0.1666666667 + 0.1666666667 + m = 0.957427108 + 0.1666666667 Combine like terms: -0.1666666667 + 0.1666666667 = 0.0000000000 0.0000000000 + m = 0.957427108 + 0.1666666667 m = 0.957427108 + 0.1666666667 Combine like terms: 0.957427108 + 0.1666666667 = 1.1240937747 m = 1.1240937747 Simplifying m = 1.1240937747

Subproblem 2

m + -0.1666666667 = -0.957427108 Simplifying m + -0.1666666667 = -0.957427108 Reorder the terms: -0.1666666667 + m = -0.957427108 Solving -0.1666666667 + m = -0.957427108 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '0.1666666667' to each side of the equation. -0.1666666667 + 0.1666666667 + m = -0.957427108 + 0.1666666667 Combine like terms: -0.1666666667 + 0.1666666667 = 0.0000000000 0.0000000000 + m = -0.957427108 + 0.1666666667 m = -0.957427108 + 0.1666666667 Combine like terms: -0.957427108 + 0.1666666667 = -0.7907604413 m = -0.7907604413 Simplifying m = -0.7907604413

Solution

The solution to the problem is based on the solutions from the subproblems. m = {1.1240937747, -0.7907604413}

See similar equations:

| -5w+3(w-3)=3 | | -28=-12x | | (-7y^2)(3y^4)= | | A=Bx-Cyforb | | 19-10y=-37 | | 5x+20=-9x-15 | | 5-8x=43 | | V=(6x+36)2 | | 2e^7t=3e^6t | | 6900=x+0.15x | | 0x+4y=8 | | -[4x-(3x+4)]=-3-[3(2x-4)-3x] | | 3x^3+5x-4=0 | | 3-9y=-x-15 | | 1b-35=0 | | 1b-53=0 | | x+(x-581)=2529 | | 2(x-4)-(-6x+4)= | | 7+9*7/3=x | | 114-3x^2=o | | 5x+20=3x-15 | | 2x^2+2kx+k^2=9 | | 16=-8x+6 | | 10(x+15)=230 | | 2(3x+5)+2=8x-4 | | -28z^3+16z^2+80z= | | 3+.10Y=18 | | 9x-256=332-3x | | 4(2x+3)=5x-9 | | 3=h-8 | | 5x-(2+3x)=2x+6-4x | | 12x+36y+52= |

Equations solver categories