8m^2-16m=65

Simple and best practice solution for 8m^2-16m=65 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 8m^2-16m=65 equation:


Simplifying
8m2 + -16m = 65

Reorder the terms:
-16m + 8m2 = 65

Solving
-16m + 8m2 = 65

Solving for variable 'm'.

Reorder the terms:
-65 + -16m + 8m2 = 65 + -65

Combine like terms: 65 + -65 = 0
-65 + -16m + 8m2 = 0

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

Divide each side by '8'.
-8.125 + -2m + m2 = 0

Move the constant term to the right:

Add '8.125' to each side of the equation.
-8.125 + -2m + 8.125 + m2 = 0 + 8.125

Reorder the terms:
-8.125 + 8.125 + -2m + m2 = 0 + 8.125

Combine like terms: -8.125 + 8.125 = 0.000
0.000 + -2m + m2 = 0 + 8.125
-2m + m2 = 0 + 8.125

Combine like terms: 0 + 8.125 = 8.125
-2m + m2 = 8.125

The m term is -2m.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2m + 1 + m2 = 8.125 + 1

Reorder the terms:
1 + -2m + m2 = 8.125 + 1

Combine like terms: 8.125 + 1 = 9.125
1 + -2m + m2 = 9.125

Factor a perfect square on the left side:
(m + -1)(m + -1) = 9.125

Calculate the square root of the right side: 3.020761493

Break this problem into two subproblems by setting 
(m + -1) equal to 3.020761493 and -3.020761493.

Subproblem 1

m + -1 = 3.020761493 Simplifying m + -1 = 3.020761493 Reorder the terms: -1 + m = 3.020761493 Solving -1 + m = 3.020761493 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + m = 3.020761493 + 1 Combine like terms: -1 + 1 = 0 0 + m = 3.020761493 + 1 m = 3.020761493 + 1 Combine like terms: 3.020761493 + 1 = 4.020761493 m = 4.020761493 Simplifying m = 4.020761493

Subproblem 2

m + -1 = -3.020761493 Simplifying m + -1 = -3.020761493 Reorder the terms: -1 + m = -3.020761493 Solving -1 + m = -3.020761493 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + m = -3.020761493 + 1 Combine like terms: -1 + 1 = 0 0 + m = -3.020761493 + 1 m = -3.020761493 + 1 Combine like terms: -3.020761493 + 1 = -2.020761493 m = -2.020761493 Simplifying m = -2.020761493

Solution

The solution to the problem is based on the solutions from the subproblems. m = {4.020761493, -2.020761493}

See similar equations:

| -8a-2/3(-1+5a)=-22/3-11a | | -17v+20=-11v-8v-20 | | (d-4/4)^2=9 | | (X-8)(x-2)=9 | | w^2-30w+29=0 | | -3x-5=-6(-8x-3)+8 | | -19-k=-13k+17 | | 9m-11=10m+12 | | 5/9(23-32) | | -9/2+9t/2=-1/4(-10t-2) | | 4a/5(10a-25b)=0 | | 2/3k=-1 | | (X-8)(x-2)-9=0 | | 6x(x-2)=19x+24 | | 5(y-6)+2= | | 4x^2=1+7x | | 10-3j=-5j-6 | | x(2x-18)-143=0 | | 1.8-x=-1.7 | | -10p-2=-7p-9-4p | | =-5n-2n | | 2(4/5+5a/3)=-17/5+28a/3 | | 3x-g=7h | | -7-8p=17 | | x^2+y^2-4x+2y-3=0 | | 0=3x^3-12x^2+3x | | 11x+9=x+79 | | 6/(m+2)+10=5m | | 7(a-4)=4a-(2a+4) | | 9x-6=3(-2+3x) | | 3t1/3x=5 | | 3n=-22 |

Equations solver categories