m^2-17m-77=

Simple and best practice solution for m^2-17m-77= 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^2-17m-77= equation:


Simplifying
m2 + -17m + -77 = 0

Reorder the terms:
-77 + -17m + m2 = 0

Solving
-77 + -17m + m2 = 0

Solving for variable 'm'.

Begin completing the square.

Move the constant term to the right:

Add '77' to each side of the equation.
-77 + -17m + 77 + m2 = 0 + 77

Reorder the terms:
-77 + 77 + -17m + m2 = 0 + 77

Combine like terms: -77 + 77 = 0
0 + -17m + m2 = 0 + 77
-17m + m2 = 0 + 77

Combine like terms: 0 + 77 = 77
-17m + m2 = 77

The m term is -17m.  Take half its coefficient (-8.5).
Square it (72.25) and add it to both sides.

Add '72.25' to each side of the equation.
-17m + 72.25 + m2 = 77 + 72.25

Reorder the terms:
72.25 + -17m + m2 = 77 + 72.25

Combine like terms: 77 + 72.25 = 149.25
72.25 + -17m + m2 = 149.25

Factor a perfect square on the left side:
(m + -8.5)(m + -8.5) = 149.25

Calculate the square root of the right side: 12.216791723

Break this problem into two subproblems by setting 
(m + -8.5) equal to 12.216791723 and -12.216791723.

Subproblem 1

m + -8.5 = 12.216791723 Simplifying m + -8.5 = 12.216791723 Reorder the terms: -8.5 + m = 12.216791723 Solving -8.5 + m = 12.216791723 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '8.5' to each side of the equation. -8.5 + 8.5 + m = 12.216791723 + 8.5 Combine like terms: -8.5 + 8.5 = 0.0 0.0 + m = 12.216791723 + 8.5 m = 12.216791723 + 8.5 Combine like terms: 12.216791723 + 8.5 = 20.716791723 m = 20.716791723 Simplifying m = 20.716791723

Subproblem 2

m + -8.5 = -12.216791723 Simplifying m + -8.5 = -12.216791723 Reorder the terms: -8.5 + m = -12.216791723 Solving -8.5 + m = -12.216791723 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '8.5' to each side of the equation. -8.5 + 8.5 + m = -12.216791723 + 8.5 Combine like terms: -8.5 + 8.5 = 0.0 0.0 + m = -12.216791723 + 8.5 m = -12.216791723 + 8.5 Combine like terms: -12.216791723 + 8.5 = -3.716791723 m = -3.716791723 Simplifying m = -3.716791723

Solution

The solution to the problem is based on the solutions from the subproblems. m = {20.716791723, -3.716791723}

See similar equations:

| 0-6.5= | | x^2+24x-25= | | 12x^3-6x-1=0 | | 2(x=4)/3=4x-4 | | 2+4+2+3*6= | | (y^3)dx+(3xy^3)dy=0 | | (y^3)dx+(3xy^3)=0 | | n^2+3n-108= | | x^2-18x-175= | | mb-b=-8 | | 5x-9x-9=4x+2-9 | | xb-b=3 | | f(x)=(x-1)(x-1)(x+2i)(x-2i) | | r^2+17r+6= | | (m+1)x^2+4mx+m+1=0 | | x^2+y^2-4xy+6x-4y-2=0 | | 7x^2-77x+168=0 | | (4x+3)*5=9x-17 | | 2x+3y+5z=7 | | -2(w-3)=9w+28 | | 5a+2-5a=3 | | 15r^2+4rs-3s^2=0 | | Kx^2-kx+1=0 | | 6+2=X+2 | | 27r^2-66rs+24s^2=0 | | 2x^2-11xy-6y^2=0 | | 3(x-4)-2(3x+4)-2(3x+4)=4(3-x)+5x+4 | | x=18+4y | | 5k=2k+12 | | 3(x-4)-2(3x+4)-2(3x+4)-2(3x+4)=4(3-x)+5x+4 | | 5(x-9)-6=21 | | 34.66*x-2.52*x*lnx=31090 |

Equations solver categories