[(8m^2+4m-7)-(2m^2-5m+2)]-(m^2+m+1)=

Simple and best practice solution for [(8m^2+4m-7)-(2m^2-5m+2)]-(m^2+m+1)= 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+4m-7)-(2m^2-5m+2)]-(m^2+m+1)= equation:


Simplifying
[(8m2 + 4m + -7) + -1(2m2 + -5m + 2)] + -1(m2 + m + 1) = 0

Reorder the terms:
[(-7 + 4m + 8m2) + -1(2m2 + -5m + 2)] + -1(m2 + m + 1) = 0

Remove parenthesis around (-7 + 4m + 8m2)
[-7 + 4m + 8m2 + -1(2m2 + -5m + 2)] + -1(m2 + m + 1) = 0

Reorder the terms:
[-7 + 4m + 8m2 + -1(2 + -5m + 2m2)] + -1(m2 + m + 1) = 0
[-7 + 4m + 8m2 + (2 * -1 + -5m * -1 + 2m2 * -1)] + -1(m2 + m + 1) = 0
[-7 + 4m + 8m2 + (-2 + 5m + -2m2)] + -1(m2 + m + 1) = 0

Reorder the terms:
[-7 + -2 + 4m + 5m + 8m2 + -2m2] + -1(m2 + m + 1) = 0

Combine like terms: -7 + -2 = -9
[-9 + 4m + 5m + 8m2 + -2m2] + -1(m2 + m + 1) = 0

Combine like terms: 4m + 5m = 9m
[-9 + 9m + 8m2 + -2m2] + -1(m2 + m + 1) = 0

Combine like terms: 8m2 + -2m2 = 6m2
[-9 + 9m + 6m2] + -1(m2 + m + 1) = 0

Remove brackets around [-9 + 9m + 6m2]
-9 + 9m + 6m2 + -1(m2 + m + 1) = 0

Reorder the terms:
-9 + 9m + 6m2 + -1(1 + m + m2) = 0
-9 + 9m + 6m2 + (1 * -1 + m * -1 + m2 * -1) = 0
-9 + 9m + 6m2 + (-1 + -1m + -1m2) = 0

Reorder the terms:
-9 + -1 + 9m + -1m + 6m2 + -1m2 = 0

Combine like terms: -9 + -1 = -10
-10 + 9m + -1m + 6m2 + -1m2 = 0

Combine like terms: 9m + -1m = 8m
-10 + 8m + 6m2 + -1m2 = 0

Combine like terms: 6m2 + -1m2 = 5m2
-10 + 8m + 5m2 = 0

Solving
-10 + 8m + 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'.
-2 + 1.6m + m2 = 0

Move the constant term to the right:

Add '2' to each side of the equation.
-2 + 1.6m + 2 + m2 = 0 + 2

Reorder the terms:
-2 + 2 + 1.6m + m2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + 1.6m + m2 = 0 + 2
1.6m + m2 = 0 + 2

Combine like terms: 0 + 2 = 2
1.6m + m2 = 2

The m term is 1.6m.  Take half its coefficient (0.8).
Square it (0.64) and add it to both sides.

Add '0.64' to each side of the equation.
1.6m + 0.64 + m2 = 2 + 0.64

Reorder the terms:
0.64 + 1.6m + m2 = 2 + 0.64

Combine like terms: 2 + 0.64 = 2.64
0.64 + 1.6m + m2 = 2.64

Factor a perfect square on the left side:
(m + 0.8)(m + 0.8) = 2.64

Calculate the square root of the right side: 1.624807681

Break this problem into two subproblems by setting 
(m + 0.8) equal to 1.624807681 and -1.624807681.

Subproblem 1

m + 0.8 = 1.624807681 Simplifying m + 0.8 = 1.624807681 Reorder the terms: 0.8 + m = 1.624807681 Solving 0.8 + m = 1.624807681 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-0.8' to each side of the equation. 0.8 + -0.8 + m = 1.624807681 + -0.8 Combine like terms: 0.8 + -0.8 = 0.0 0.0 + m = 1.624807681 + -0.8 m = 1.624807681 + -0.8 Combine like terms: 1.624807681 + -0.8 = 0.824807681 m = 0.824807681 Simplifying m = 0.824807681

Subproblem 2

m + 0.8 = -1.624807681 Simplifying m + 0.8 = -1.624807681 Reorder the terms: 0.8 + m = -1.624807681 Solving 0.8 + m = -1.624807681 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-0.8' to each side of the equation. 0.8 + -0.8 + m = -1.624807681 + -0.8 Combine like terms: 0.8 + -0.8 = 0.0 0.0 + m = -1.624807681 + -0.8 m = -1.624807681 + -0.8 Combine like terms: -1.624807681 + -0.8 = -2.424807681 m = -2.424807681 Simplifying m = -2.424807681

Solution

The solution to the problem is based on the solutions from the subproblems. m = {0.824807681, -2.424807681}

See similar equations:

| y=-4+3x+x^2 | | 38.13x-7.26=13.48-16.91 | | 3*3-2*3+u=(3*3-3*8)(2)+u | | x-0.8=9.18 | | 2x+25=21-25 | | (n*4)-5=3 | | 4x-8=6x+3 | | 2xy(x+y)=3 | | 45+500=50 | | 20*t=60 | | V=(3.14)r^2h | | 10=-8+2y-10 | | 2x+35=21-3x | | x^4+x^3+x^3=0.1 | | 4y^2=(11y-1)(11y-1) | | (4/5)d=-32 | | y=3x^2+18x+27 | | 2x+25=21-3x | | -5=1.2x | | N-13=14-4N | | 7a+4-13a=16 | | 4x+2=44 | | -4x-6-7=17 | | -5y+6=-36 | | -4(7m-3n+8p)= | | (2x+3)(5x^2-11+12)=0 | | (9a^4-3a^2+2)+(4a^4-4a^2+2)+(-12a^4+6a^2-3)= | | 15x+2x^2=0 | | x^4+x^3+x^2+x=1 | | -8p+6(-5p+7)=156 | | 5x^2-11x+1=0 | | 6d-4+6d-4=-3d+13 |

Equations solver categories