4m^2+7m=6

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Solution for 4m^2+7m=6 equation:


Simplifying
4m2 + 7m = 6

Reorder the terms:
7m + 4m2 = 6

Solving
7m + 4m2 = 6

Solving for variable 'm'.

Reorder the terms:
-6 + 7m + 4m2 = 6 + -6

Combine like terms: 6 + -6 = 0
-6 + 7m + 4m2 = 0

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

Divide each side by '4'.
-1.5 + 1.75m + m2 = 0

Move the constant term to the right:

Add '1.5' to each side of the equation.
-1.5 + 1.75m + 1.5 + m2 = 0 + 1.5

Reorder the terms:
-1.5 + 1.5 + 1.75m + m2 = 0 + 1.5

Combine like terms: -1.5 + 1.5 = 0.0
0.0 + 1.75m + m2 = 0 + 1.5
1.75m + m2 = 0 + 1.5

Combine like terms: 0 + 1.5 = 1.5
1.75m + m2 = 1.5

The m term is 1.75m.  Take half its coefficient (0.875).
Square it (0.765625) and add it to both sides.

Add '0.765625' to each side of the equation.
1.75m + 0.765625 + m2 = 1.5 + 0.765625

Reorder the terms:
0.765625 + 1.75m + m2 = 1.5 + 0.765625

Combine like terms: 1.5 + 0.765625 = 2.265625
0.765625 + 1.75m + m2 = 2.265625

Factor a perfect square on the left side:
(m + 0.875)(m + 0.875) = 2.265625

Calculate the square root of the right side: 1.505199322

Break this problem into two subproblems by setting 
(m + 0.875) equal to 1.505199322 and -1.505199322.

Subproblem 1

m + 0.875 = 1.505199322 Simplifying m + 0.875 = 1.505199322 Reorder the terms: 0.875 + m = 1.505199322 Solving 0.875 + m = 1.505199322 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-0.875' to each side of the equation. 0.875 + -0.875 + m = 1.505199322 + -0.875 Combine like terms: 0.875 + -0.875 = 0.000 0.000 + m = 1.505199322 + -0.875 m = 1.505199322 + -0.875 Combine like terms: 1.505199322 + -0.875 = 0.630199322 m = 0.630199322 Simplifying m = 0.630199322

Subproblem 2

m + 0.875 = -1.505199322 Simplifying m + 0.875 = -1.505199322 Reorder the terms: 0.875 + m = -1.505199322 Solving 0.875 + m = -1.505199322 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-0.875' to each side of the equation. 0.875 + -0.875 + m = -1.505199322 + -0.875 Combine like terms: 0.875 + -0.875 = 0.000 0.000 + m = -1.505199322 + -0.875 m = -1.505199322 + -0.875 Combine like terms: -1.505199322 + -0.875 = -2.380199322 m = -2.380199322 Simplifying m = -2.380199322

Solution

The solution to the problem is based on the solutions from the subproblems. m = {0.630199322, -2.380199322}

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