5m^2=3m+16

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Solution for 5m^2=3m+16 equation:


Simplifying
5m2 = 3m + 16

Reorder the terms:
5m2 = 16 + 3m

Solving
5m2 = 16 + 3m

Solving for variable 'm'.

Reorder the terms:
-16 + -3m + 5m2 = 16 + 3m + -16 + -3m

Reorder the terms:
-16 + -3m + 5m2 = 16 + -16 + 3m + -3m

Combine like terms: 16 + -16 = 0
-16 + -3m + 5m2 = 0 + 3m + -3m
-16 + -3m + 5m2 = 3m + -3m

Combine like terms: 3m + -3m = 0
-16 + -3m + 5m2 = 0

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

Divide each side by '5'.
-3.2 + -0.6m + m2 = 0

Move the constant term to the right:

Add '3.2' to each side of the equation.
-3.2 + -0.6m + 3.2 + m2 = 0 + 3.2

Reorder the terms:
-3.2 + 3.2 + -0.6m + m2 = 0 + 3.2

Combine like terms: -3.2 + 3.2 = 0.0
0.0 + -0.6m + m2 = 0 + 3.2
-0.6m + m2 = 0 + 3.2

Combine like terms: 0 + 3.2 = 3.2
-0.6m + m2 = 3.2

The m term is -0.6m.  Take half its coefficient (-0.3).
Square it (0.09) and add it to both sides.

Add '0.09' to each side of the equation.
-0.6m + 0.09 + m2 = 3.2 + 0.09

Reorder the terms:
0.09 + -0.6m + m2 = 3.2 + 0.09

Combine like terms: 3.2 + 0.09 = 3.29
0.09 + -0.6m + m2 = 3.29

Factor a perfect square on the left side:
(m + -0.3)(m + -0.3) = 3.29

Calculate the square root of the right side: 1.813835715

Break this problem into two subproblems by setting 
(m + -0.3) equal to 1.813835715 and -1.813835715.

Subproblem 1

m + -0.3 = 1.813835715 Simplifying m + -0.3 = 1.813835715 Reorder the terms: -0.3 + m = 1.813835715 Solving -0.3 + m = 1.813835715 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '0.3' to each side of the equation. -0.3 + 0.3 + m = 1.813835715 + 0.3 Combine like terms: -0.3 + 0.3 = 0.0 0.0 + m = 1.813835715 + 0.3 m = 1.813835715 + 0.3 Combine like terms: 1.813835715 + 0.3 = 2.113835715 m = 2.113835715 Simplifying m = 2.113835715

Subproblem 2

m + -0.3 = -1.813835715 Simplifying m + -0.3 = -1.813835715 Reorder the terms: -0.3 + m = -1.813835715 Solving -0.3 + m = -1.813835715 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '0.3' to each side of the equation. -0.3 + 0.3 + m = -1.813835715 + 0.3 Combine like terms: -0.3 + 0.3 = 0.0 0.0 + m = -1.813835715 + 0.3 m = -1.813835715 + 0.3 Combine like terms: -1.813835715 + 0.3 = -1.513835715 m = -1.513835715 Simplifying m = -1.513835715

Solution

The solution to the problem is based on the solutions from the subproblems. m = {2.113835715, -1.513835715}

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