4m^2+2m=7

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


Simplifying
4m2 + 2m = 7

Reorder the terms:
2m + 4m2 = 7

Solving
2m + 4m2 = 7

Solving for variable 'm'.

Reorder the terms:
-7 + 2m + 4m2 = 7 + -7

Combine like terms: 7 + -7 = 0
-7 + 2m + 4m2 = 0

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

Divide each side by '4'.
-1.75 + 0.5m + m2 = 0

Move the constant term to the right:

Add '1.75' to each side of the equation.
-1.75 + 0.5m + 1.75 + m2 = 0 + 1.75

Reorder the terms:
-1.75 + 1.75 + 0.5m + m2 = 0 + 1.75

Combine like terms: -1.75 + 1.75 = 0.00
0.00 + 0.5m + m2 = 0 + 1.75
0.5m + m2 = 0 + 1.75

Combine like terms: 0 + 1.75 = 1.75
0.5m + m2 = 1.75

The m term is 0.5m.  Take half its coefficient (0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
0.5m + 0.0625 + m2 = 1.75 + 0.0625

Reorder the terms:
0.0625 + 0.5m + m2 = 1.75 + 0.0625

Combine like terms: 1.75 + 0.0625 = 1.8125
0.0625 + 0.5m + m2 = 1.8125

Factor a perfect square on the left side:
(m + 0.25)(m + 0.25) = 1.8125

Calculate the square root of the right side: 1.346291202

Break this problem into two subproblems by setting 
(m + 0.25) equal to 1.346291202 and -1.346291202.

Subproblem 1

m + 0.25 = 1.346291202 Simplifying m + 0.25 = 1.346291202 Reorder the terms: 0.25 + m = 1.346291202 Solving 0.25 + m = 1.346291202 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + m = 1.346291202 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + m = 1.346291202 + -0.25 m = 1.346291202 + -0.25 Combine like terms: 1.346291202 + -0.25 = 1.096291202 m = 1.096291202 Simplifying m = 1.096291202

Subproblem 2

m + 0.25 = -1.346291202 Simplifying m + 0.25 = -1.346291202 Reorder the terms: 0.25 + m = -1.346291202 Solving 0.25 + m = -1.346291202 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + m = -1.346291202 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + m = -1.346291202 + -0.25 m = -1.346291202 + -0.25 Combine like terms: -1.346291202 + -0.25 = -1.596291202 m = -1.596291202 Simplifying m = -1.596291202

Solution

The solution to the problem is based on the solutions from the subproblems. m = {1.096291202, -1.596291202}

See similar equations:

| (8x^2+2x+12)-(4x-1)= | | 7x+14=4x-13 | | 5x-3x-17=0 | | 9*54= | | 8-14=5x-6x | | -4-6(1+5c)=22 | | -3(2t+5)=-9 | | 6x^2+29x+35= | | g(-43)=19 | | 4(f-6)=-4 | | 5+2(3x-5)=13 | | 12/x=-6 | | 35+2x^2=19x | | 15f^2-14f+3= | | 10(s-8)=-111 | | -31=9(8b-4) | | 12s^2+19s+4= | | (-1/2)(4-x)^-1/2 | | 36x^2+27x=0 | | y=tan(2-3x) | | 4(t+4)=0 | | -1/2(4-x)^1/2=0 | | n-4(8+5n)=8 | | .40x^2-6x-7000=0 | | 2(3s+4)=62 | | 1250v^4z^5/20v^2z^3 | | 5(2x+4)=5(x+4) | | 4x+6+2x=180 | | 2+2-4+3=43 | | 2(21+8)=40 | | 2x+14=9x-7 | | -6(1+5f)=-16 |

Equations solver categories