2m+4m(m-7)=7m-4

Simple and best practice solution for 2m+4m(m-7)=7m-4 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 2m+4m(m-7)=7m-4 equation:


Simplifying
2m + 4m(m + -7) = 7m + -4

Reorder the terms:
2m + 4m(-7 + m) = 7m + -4
2m + (-7 * 4m + m * 4m) = 7m + -4
2m + (-28m + 4m2) = 7m + -4

Combine like terms: 2m + -28m = -26m
-26m + 4m2 = 7m + -4

Reorder the terms:
-26m + 4m2 = -4 + 7m

Solving
-26m + 4m2 = -4 + 7m

Solving for variable 'm'.

Reorder the terms:
4 + -26m + -7m + 4m2 = -4 + 7m + 4 + -7m

Combine like terms: -26m + -7m = -33m
4 + -33m + 4m2 = -4 + 7m + 4 + -7m

Reorder the terms:
4 + -33m + 4m2 = -4 + 4 + 7m + -7m

Combine like terms: -4 + 4 = 0
4 + -33m + 4m2 = 0 + 7m + -7m
4 + -33m + 4m2 = 7m + -7m

Combine like terms: 7m + -7m = 0
4 + -33m + 4m2 = 0

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

Divide each side by '4'.
1 + -8.25m + m2 = 0

Move the constant term to the right:

Add '-1' to each side of the equation.
1 + -8.25m + -1 + m2 = 0 + -1

Reorder the terms:
1 + -1 + -8.25m + m2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -8.25m + m2 = 0 + -1
-8.25m + m2 = 0 + -1

Combine like terms: 0 + -1 = -1
-8.25m + m2 = -1

The m term is -8.25m.  Take half its coefficient (-4.125).
Square it (17.015625) and add it to both sides.

Add '17.015625' to each side of the equation.
-8.25m + 17.015625 + m2 = -1 + 17.015625

Reorder the terms:
17.015625 + -8.25m + m2 = -1 + 17.015625

Combine like terms: -1 + 17.015625 = 16.015625
17.015625 + -8.25m + m2 = 16.015625

Factor a perfect square on the left side:
(m + -4.125)(m + -4.125) = 16.015625

Calculate the square root of the right side: 4.001952648

Break this problem into two subproblems by setting 
(m + -4.125) equal to 4.001952648 and -4.001952648.

Subproblem 1

m + -4.125 = 4.001952648 Simplifying m + -4.125 = 4.001952648 Reorder the terms: -4.125 + m = 4.001952648 Solving -4.125 + m = 4.001952648 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '4.125' to each side of the equation. -4.125 + 4.125 + m = 4.001952648 + 4.125 Combine like terms: -4.125 + 4.125 = 0.000 0.000 + m = 4.001952648 + 4.125 m = 4.001952648 + 4.125 Combine like terms: 4.001952648 + 4.125 = 8.126952648 m = 8.126952648 Simplifying m = 8.126952648

Subproblem 2

m + -4.125 = -4.001952648 Simplifying m + -4.125 = -4.001952648 Reorder the terms: -4.125 + m = -4.001952648 Solving -4.125 + m = -4.001952648 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '4.125' to each side of the equation. -4.125 + 4.125 + m = -4.001952648 + 4.125 Combine like terms: -4.125 + 4.125 = 0.000 0.000 + m = -4.001952648 + 4.125 m = -4.001952648 + 4.125 Combine like terms: -4.001952648 + 4.125 = 0.123047352 m = 0.123047352 Simplifying m = 0.123047352

Solution

The solution to the problem is based on the solutions from the subproblems. m = {8.126952648, 0.123047352}

See similar equations:

| -7s-2s-3+2s= | | x^2+4x+10=6 | | -3-x=3x-5x | | (X^2-25)/(x-2)=0 | | 7.3y+46=59.87 | | y-4-6y=21 | | (X^2-25)/(x-2) | | 8+6w-2+7w= | | x-2[7x-1]=-12x-1 | | -2c+(-4)c= | | 7(h-6)=42 | | 8p+.08=60 | | .166x+.5833=.3888 | | (-3)*(z+2)-(7-2z)=5 | | 8p+.08=5p+.05p | | -10s+10s= | | (-1/2)x-6=-7 | | 4(x-2)-(3x-8)=45 | | ln(2x)*ln(6)=ln(x) | | -10n-(-7)n= | | x=50+(15+8) | | 3x+16=10-7x | | x+1375=2500 | | 3X^8+5X^4=2 | | (9-2x)=17 | | 735=1255-x | | x-5=2x-17 | | 7-10x-3+7x= | | 18+(x-3)=7 | | 5x=-135 | | (Log3/log10)((3x)/(x-1)^(1/2) | | 4/x=10/18 |

Equations solver categories