m^2-4m+8+7=4

Simple and best practice solution for m^2-4m+8+7=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 m^2-4m+8+7=4 equation:


Simplifying
m2 + -4m + 8 + 7 = 4

Reorder the terms:
8 + 7 + -4m + m2 = 4

Combine like terms: 8 + 7 = 15
15 + -4m + m2 = 4

Solving
15 + -4m + m2 = 4

Solving for variable 'm'.

Reorder the terms:
15 + -4 + -4m + m2 = 4 + -4

Combine like terms: 15 + -4 = 11
11 + -4m + m2 = 4 + -4

Combine like terms: 4 + -4 = 0
11 + -4m + m2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-11' to each side of the equation.
11 + -4m + -11 + m2 = 0 + -11

Reorder the terms:
11 + -11 + -4m + m2 = 0 + -11

Combine like terms: 11 + -11 = 0
0 + -4m + m2 = 0 + -11
-4m + m2 = 0 + -11

Combine like terms: 0 + -11 = -11
-4m + m2 = -11

The m term is -4m.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4m + 4 + m2 = -11 + 4

Reorder the terms:
4 + -4m + m2 = -11 + 4

Combine like terms: -11 + 4 = -7
4 + -4m + m2 = -7

Factor a perfect square on the left side:
(m + -2)(m + -2) = -7

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 3x+5=4x+3 | | 3x^2+8x=80 | | 12z-5=3z-50 | | 9x+31=2x+3 | | 8x^2+8x+80=0 | | 8m+15=4m+3 | | log(x-21)+logx=2 | | 8m=4m+3 | | 2p=96-10p | | 5u=28-2u | | 6-5x=7r+12 | | 14k+3j-6k+14h-3k+14k-5hjk= | | x*a=12 | | a*x=12 | | 101-4x=14x+19 | | 3k+4k=35 | | 2x+8=14-9x | | 6x+81=13x-10 | | 7C=21 | | 2(3m-2)=5 | | 236-6x=39x+21 | | Y-5=15 | | 8-9x=128-37x | | 21=M-6 | | 6c-3=15 | | 6-3(2x-3)=5(6-x) | | 2n+6=4 | | 12+3n=0 | | 89=9x+8 | | 89=9x | | 3x+4x-1=x-7+2x | | 3x+-1=x-7+2x |

Equations solver categories