m^2-8m=9

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


Simplifying
m2 + -8m = 9

Reorder the terms:
-8m + m2 = 9

Solving
-8m + m2 = 9

Solving for variable 'm'.

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

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

Factor a trinomial.
(-1 + -1m)(9 + -1m) = 0

Subproblem 1

Set the factor '(-1 + -1m)' equal to zero and attempt to solve: Simplifying -1 + -1m = 0 Solving -1 + -1m = 0 Move all terms containing m to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -1m = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -1m = 0 + 1 -1m = 0 + 1 Combine like terms: 0 + 1 = 1 -1m = 1 Divide each side by '-1'. m = -1 Simplifying m = -1

Subproblem 2

Set the factor '(9 + -1m)' equal to zero and attempt to solve: Simplifying 9 + -1m = 0 Solving 9 + -1m = 0 Move all terms containing m to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1m = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1m = 0 + -9 -1m = 0 + -9 Combine like terms: 0 + -9 = -9 -1m = -9 Divide each side by '-1'. m = 9 Simplifying m = 9

Solution

m = {-1, 9}

See similar equations:

| 2n^2+20=0 | | -9x-8=15x | | 7•(4/35x) | | 19-5/2x=17 | | 4(2x+1)-4(2x-1)-1=0 | | 10x+13=-17x+5 | | (8ab)-(-12ab)-(15ab)= | | 4(2x+1)-4(2x-1)=0 | | Log(4)+64+log(4)4= | | 6/13=n/12 | | T=M+S+C | | 2/3(-9)=17 | | 2y^2-4y-3=0 | | -1/2(2/3x-3/4)-7/2x=-83/24 | | ln(x)=ln(x+6)-ln(2) | | 9x^2-6x+13=0 | | (-23xy^2)+(11xy^2)+(-12xy^2)= | | 3m-16x-3=21 | | 1/4x-3/2=2 | | 9d^4-40d^2+31=0 | | z^2-12=4z | | 5(3)+4y=6 | | -3/11-(-5/11)= | | 2(x-5)+7=11-x | | 18x+1=-7 | | 2(x-5)+7=11 | | 9*n+6= | | 25n^2+125n=0 | | (4y-9)(3+y)=0 | | -86=7(n-7)+5 | | 2(3x^2)+18(3x^2)-14=0 | | =-6+(-8) |

Equations solver categories