5m(m-3)+6(m-7)=

Simple and best practice solution for 5m(m-3)+6(m-7)= 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 5m(m-3)+6(m-7)= equation:


Simplifying
5m(m + -3) + 6(m + -7) = 0

Reorder the terms:
5m(-3 + m) + 6(m + -7) = 0
(-3 * 5m + m * 5m) + 6(m + -7) = 0
(-15m + 5m2) + 6(m + -7) = 0

Reorder the terms:
-15m + 5m2 + 6(-7 + m) = 0
-15m + 5m2 + (-7 * 6 + m * 6) = 0
-15m + 5m2 + (-42 + 6m) = 0

Reorder the terms:
-42 + -15m + 6m + 5m2 = 0

Combine like terms: -15m + 6m = -9m
-42 + -9m + 5m2 = 0

Solving
-42 + -9m + 5m2 = 0

Solving for variable 'm'.

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

Divide each side by '5'.
-8.4 + -1.8m + m2 = 0

Move the constant term to the right:

Add '8.4' to each side of the equation.
-8.4 + -1.8m + 8.4 + m2 = 0 + 8.4

Reorder the terms:
-8.4 + 8.4 + -1.8m + m2 = 0 + 8.4

Combine like terms: -8.4 + 8.4 = 0.0
0.0 + -1.8m + m2 = 0 + 8.4
-1.8m + m2 = 0 + 8.4

Combine like terms: 0 + 8.4 = 8.4
-1.8m + m2 = 8.4

The m term is -1.8m.  Take half its coefficient (-0.9).
Square it (0.81) and add it to both sides.

Add '0.81' to each side of the equation.
-1.8m + 0.81 + m2 = 8.4 + 0.81

Reorder the terms:
0.81 + -1.8m + m2 = 8.4 + 0.81

Combine like terms: 8.4 + 0.81 = 9.21
0.81 + -1.8m + m2 = 9.21

Factor a perfect square on the left side:
(m + -0.9)(m + -0.9) = 9.21

Calculate the square root of the right side: 3.034798181

Break this problem into two subproblems by setting 
(m + -0.9) equal to 3.034798181 and -3.034798181.

Subproblem 1

m + -0.9 = 3.034798181 Simplifying m + -0.9 = 3.034798181 Reorder the terms: -0.9 + m = 3.034798181 Solving -0.9 + m = 3.034798181 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '0.9' to each side of the equation. -0.9 + 0.9 + m = 3.034798181 + 0.9 Combine like terms: -0.9 + 0.9 = 0.0 0.0 + m = 3.034798181 + 0.9 m = 3.034798181 + 0.9 Combine like terms: 3.034798181 + 0.9 = 3.934798181 m = 3.934798181 Simplifying m = 3.934798181

Subproblem 2

m + -0.9 = -3.034798181 Simplifying m + -0.9 = -3.034798181 Reorder the terms: -0.9 + m = -3.034798181 Solving -0.9 + m = -3.034798181 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '0.9' to each side of the equation. -0.9 + 0.9 + m = -3.034798181 + 0.9 Combine like terms: -0.9 + 0.9 = 0.0 0.0 + m = -3.034798181 + 0.9 m = -3.034798181 + 0.9 Combine like terms: -3.034798181 + 0.9 = -2.134798181 m = -2.134798181 Simplifying m = -2.134798181

Solution

The solution to the problem is based on the solutions from the subproblems. m = {3.934798181, -2.134798181}

See similar equations:

| 9(5n+2)= | | 135=2x+15 | | 10x-4x+12=3x+8 | | 2y+5x=11 | | 2x-11x-12=0 | | -17+x=-27 | | 2(6w-3)=3(5w-2) | | 7(2+v)+34v=11v | | 376x+12x=280+15x | | 15.75+.08x=16.50-.09x | | 3(2x+3)=5(x-5) | | -49=-7x-7x-7 | | 5x+18-7=8-4x | | 6x+2=3(x+5) | | 9+5x+6x=141 | | -x-8=34 | | 3+8n-1=5n+12-2n | | 44=4x+4(-5x-13) | | 6(3n+4)=96 | | 12-k=-8 | | (5x+3)*(x^2+4)= | | 12x+40=148 | | k-12=-8 | | 6(x-1-3)=-2(x+23) | | -3x-5y=-15 | | 4x+7x-11a=11x+11a-22 | | 10x-20=-1 | | 6(r-11)=12 | | 7x-10+2x+1=90 | | 3x-5y=.15 | | H(-1)=4x^2-5 | | 9z+16=8z+1 |

Equations solver categories