7m^2-12m=-8

Simple and best practice solution for 7m^2-12m=-8 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 7m^2-12m=-8 equation:


Simplifying
7m2 + -12m = -8

Reorder the terms:
-12m + 7m2 = -8

Solving
-12m + 7m2 = -8

Solving for variable 'm'.

Reorder the terms:
8 + -12m + 7m2 = -8 + 8

Combine like terms: -8 + 8 = 0
8 + -12m + 7m2 = 0

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

Divide each side by '7'.
1.142857143 + -1.714285714m + m2 = 0

Move the constant term to the right:

Add '-1.142857143' to each side of the equation.
1.142857143 + -1.714285714m + -1.142857143 + m2 = 0 + -1.142857143

Reorder the terms:
1.142857143 + -1.142857143 + -1.714285714m + m2 = 0 + -1.142857143

Combine like terms: 1.142857143 + -1.142857143 = 0.000000000
0.000000000 + -1.714285714m + m2 = 0 + -1.142857143
-1.714285714m + m2 = 0 + -1.142857143

Combine like terms: 0 + -1.142857143 = -1.142857143
-1.714285714m + m2 = -1.142857143

The m term is -1.714285714m.  Take half its coefficient (-0.857142857).
Square it (0.7346938773) and add it to both sides.

Add '0.7346938773' to each side of the equation.
-1.714285714m + 0.7346938773 + m2 = -1.142857143 + 0.7346938773

Reorder the terms:
0.7346938773 + -1.714285714m + m2 = -1.142857143 + 0.7346938773

Combine like terms: -1.142857143 + 0.7346938773 = -0.4081632657
0.7346938773 + -1.714285714m + m2 = -0.4081632657

Factor a perfect square on the left side:
(m + -0.857142857)(m + -0.857142857) = -0.4081632657

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| X=4+-0.5 | | a^3(ab+b)= | | 2(x-3)+4(x-2)= | | x^2/2*15=225 | | -11+x=19 | | .3x+.4x=16.0 | | 5d-4=5d+7 | | -4(k+6)=10k-(6k-8) | | 10p^2+6=0 | | 8x+5y=36+0 | | x-1/3=2/7 | | 3(x+3)+2(x-2)= | | 4x-91=2x-4 | | 2(4x-5)=9(x-2) | | 2-3/o-1 | | 22,000-16,000/12=14,000 | | 8-x=8-2(x-2) | | Y=lb | | 9a-3=5(a+2)+4a | | A=r/26 | | 5000=22000/(12-X/5000) | | -4n(9n+4)=0 | | (x-8)2+(y)2= | | -4(24+8w)=-64 | | 15y=36+6y | | (x-5)2+(y+3)2= | | 8n^2-16n-280=0 | | (4x^2-25)(3x+7)=(4x^2-25)(x-6) | | 4(2x-10)=2x+35 | | x=4-66 | | 176+4=m | | 3/8(5^2-3^2) |

Equations solver categories