m(m+8)=-3

Simple and best practice solution for m(m+8)=-3 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(m+8)=-3 equation:


Simplifying
m(m + 8) = -3

Reorder the terms:
m(8 + m) = -3
(8 * m + m * m) = -3
(8m + m2) = -3

Solving
8m + m2 = -3

Solving for variable 'm'.

Reorder the terms:
3 + 8m + m2 = -3 + 3

Combine like terms: -3 + 3 = 0
3 + 8m + m2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-3' to each side of the equation.
3 + 8m + -3 + m2 = 0 + -3

Reorder the terms:
3 + -3 + 8m + m2 = 0 + -3

Combine like terms: 3 + -3 = 0
0 + 8m + m2 = 0 + -3
8m + m2 = 0 + -3

Combine like terms: 0 + -3 = -3
8m + m2 = -3

The m term is 8m.  Take half its coefficient (4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
8m + 16 + m2 = -3 + 16

Reorder the terms:
16 + 8m + m2 = -3 + 16

Combine like terms: -3 + 16 = 13
16 + 8m + m2 = 13

Factor a perfect square on the left side:
(m + 4)(m + 4) = 13

Calculate the square root of the right side: 3.605551275

Break this problem into two subproblems by setting 
(m + 4) equal to 3.605551275 and -3.605551275.

Subproblem 1

m + 4 = 3.605551275 Simplifying m + 4 = 3.605551275 Reorder the terms: 4 + m = 3.605551275 Solving 4 + m = 3.605551275 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + m = 3.605551275 + -4 Combine like terms: 4 + -4 = 0 0 + m = 3.605551275 + -4 m = 3.605551275 + -4 Combine like terms: 3.605551275 + -4 = -0.394448725 m = -0.394448725 Simplifying m = -0.394448725

Subproblem 2

m + 4 = -3.605551275 Simplifying m + 4 = -3.605551275 Reorder the terms: 4 + m = -3.605551275 Solving 4 + m = -3.605551275 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + m = -3.605551275 + -4 Combine like terms: 4 + -4 = 0 0 + m = -3.605551275 + -4 m = -3.605551275 + -4 Combine like terms: -3.605551275 + -4 = -7.605551275 m = -7.605551275 Simplifying m = -7.605551275

Solution

The solution to the problem is based on the solutions from the subproblems. m = {-0.394448725, -7.605551275}

See similar equations:

| 30x^2-4=0 | | 5.w=25 | | -45y+45y+25=25 | | t-28+t=t+32 | | (-2y^4)(-7y^9)= | | (X^2+9x-6)(-2x)= | | 7w+8-w=9w-2(w-4) | | y=24x+6 | | 4y+6=4y-4 | | 64+4y+(7y+6)=180 | | 9-(6v+7)=6v-2 | | -6x^2+7= | | 6m-5=8m+7-m | | -2+5y=12fory | | 2(3+d-1)=4+2d | | x^5=x^3+2 | | 31=-9y | | 32=0+(70+0)e-0.122(x) | | 2(x-14)+1=-4x+5 | | 4x+10=3x+14 | | -7=2n+9 | | (7b-3)-2(3b+4)=-3 | | 3x+20*2=8x+5*2 | | 3x+20*2=8x+5 | | -3r^2+2r+7-9+4r+r^2= | | 4logx=4 | | 4(x+4)-3=1 | | F-32=18 | | -3r^2+2r=7-9+4r+r^2 | | 19-3x+7-x= | | 5(3x+2)=24 | | 6y+4=6y-4 |

Equations solver categories