2m^2+7m=3

Simple and best practice solution for 2m^2+7m=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 2m^2+7m=3 equation:


Simplifying
2m2 + 7m = 3

Reorder the terms:
7m + 2m2 = 3

Solving
7m + 2m2 = 3

Solving for variable 'm'.

Reorder the terms:
-3 + 7m + 2m2 = 3 + -3

Combine like terms: 3 + -3 = 0
-3 + 7m + 2m2 = 0

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

Divide each side by '2'.
-1.5 + 3.5m + m2 = 0

Move the constant term to the right:

Add '1.5' to each side of the equation.
-1.5 + 3.5m + 1.5 + m2 = 0 + 1.5

Reorder the terms:
-1.5 + 1.5 + 3.5m + m2 = 0 + 1.5

Combine like terms: -1.5 + 1.5 = 0.0
0.0 + 3.5m + m2 = 0 + 1.5
3.5m + m2 = 0 + 1.5

Combine like terms: 0 + 1.5 = 1.5
3.5m + m2 = 1.5

The m term is 3.5m.  Take half its coefficient (1.75).
Square it (3.0625) and add it to both sides.

Add '3.0625' to each side of the equation.
3.5m + 3.0625 + m2 = 1.5 + 3.0625

Reorder the terms:
3.0625 + 3.5m + m2 = 1.5 + 3.0625

Combine like terms: 1.5 + 3.0625 = 4.5625
3.0625 + 3.5m + m2 = 4.5625

Factor a perfect square on the left side:
(m + 1.75)(m + 1.75) = 4.5625

Calculate the square root of the right side: 2.136000936

Break this problem into two subproblems by setting 
(m + 1.75) equal to 2.136000936 and -2.136000936.

Subproblem 1

m + 1.75 = 2.136000936 Simplifying m + 1.75 = 2.136000936 Reorder the terms: 1.75 + m = 2.136000936 Solving 1.75 + m = 2.136000936 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-1.75' to each side of the equation. 1.75 + -1.75 + m = 2.136000936 + -1.75 Combine like terms: 1.75 + -1.75 = 0.00 0.00 + m = 2.136000936 + -1.75 m = 2.136000936 + -1.75 Combine like terms: 2.136000936 + -1.75 = 0.386000936 m = 0.386000936 Simplifying m = 0.386000936

Subproblem 2

m + 1.75 = -2.136000936 Simplifying m + 1.75 = -2.136000936 Reorder the terms: 1.75 + m = -2.136000936 Solving 1.75 + m = -2.136000936 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-1.75' to each side of the equation. 1.75 + -1.75 + m = -2.136000936 + -1.75 Combine like terms: 1.75 + -1.75 = 0.00 0.00 + m = -2.136000936 + -1.75 m = -2.136000936 + -1.75 Combine like terms: -2.136000936 + -1.75 = -3.886000936 m = -3.886000936 Simplifying m = -3.886000936

Solution

The solution to the problem is based on the solutions from the subproblems. m = {0.386000936, -3.886000936}

See similar equations:

| 18c^4-33c^2+14= | | 27x^2-3x=2 | | 3/7=2y/12+6y | | v+7/8=5 | | -22.2=2.5u+33.3 | | 3x+1=4x+7 | | -3.3=-1.2t+15.3 | | 12x^2+45x+42=0 | | 6s+23=-19 | | -q/12-7=5 | | (2x-4)=(3x-3) | | q/-12-7=5 | | 5(3-2y)=4(4y+20) | | 1/3*(2x-8)=4 | | 95-4x=23x+17 | | 8x+(2/x^2) | | X*X=18+3X | | B^2+3-54= | | 1/3*2x-8=4 | | (3v-5)(9+v)=0 | | 6+2(3m-2)=4(1+m) | | 0+15*1-60-60*0+10= | | 51/3*265 | | 12.4=2.5x+x | | (6n-5g)/11T | | d+1/2=-91/4 | | 8-4z=2z-13 | | a-36=44.9 | | (y-8)(y-3)=5y | | 3x-2x=2x+6 | | 2x-3/x-3-x-2/x-1 | | 72u^2-98w^2= |

Equations solver categories