(10m^2-7m+2)-(3m^2-2m+5)=

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Solution for (10m^2-7m+2)-(3m^2-2m+5)= equation:


Simplifying
(10m2 + -7m + 2) + -1(3m2 + -2m + 5) = 0

Reorder the terms:
(2 + -7m + 10m2) + -1(3m2 + -2m + 5) = 0

Remove parenthesis around (2 + -7m + 10m2)
2 + -7m + 10m2 + -1(3m2 + -2m + 5) = 0

Reorder the terms:
2 + -7m + 10m2 + -1(5 + -2m + 3m2) = 0
2 + -7m + 10m2 + (5 * -1 + -2m * -1 + 3m2 * -1) = 0
2 + -7m + 10m2 + (-5 + 2m + -3m2) = 0

Reorder the terms:
2 + -5 + -7m + 2m + 10m2 + -3m2 = 0

Combine like terms: 2 + -5 = -3
-3 + -7m + 2m + 10m2 + -3m2 = 0

Combine like terms: -7m + 2m = -5m
-3 + -5m + 10m2 + -3m2 = 0

Combine like terms: 10m2 + -3m2 = 7m2
-3 + -5m + 7m2 = 0

Solving
-3 + -5m + 7m2 = 0

Solving for variable 'm'.

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

Divide each side by '7'.
-0.4285714286 + -0.7142857143m + m2 = 0

Move the constant term to the right:

Add '0.4285714286' to each side of the equation.
-0.4285714286 + -0.7142857143m + 0.4285714286 + m2 = 0 + 0.4285714286

Reorder the terms:
-0.4285714286 + 0.4285714286 + -0.7142857143m + m2 = 0 + 0.4285714286

Combine like terms: -0.4285714286 + 0.4285714286 = 0.0000000000
0.0000000000 + -0.7142857143m + m2 = 0 + 0.4285714286
-0.7142857143m + m2 = 0 + 0.4285714286

Combine like terms: 0 + 0.4285714286 = 0.4285714286
-0.7142857143m + m2 = 0.4285714286

The m term is -0.7142857143m.  Take half its coefficient (-0.3571428572).
Square it (0.1275510204) and add it to both sides.

Add '0.1275510204' to each side of the equation.
-0.7142857143m + 0.1275510204 + m2 = 0.4285714286 + 0.1275510204

Reorder the terms:
0.1275510204 + -0.7142857143m + m2 = 0.4285714286 + 0.1275510204

Combine like terms: 0.4285714286 + 0.1275510204 = 0.556122449
0.1275510204 + -0.7142857143m + m2 = 0.556122449

Factor a perfect square on the left side:
(m + -0.3571428572)(m + -0.3571428572) = 0.556122449

Calculate the square root of the right side: 0.745736179

Break this problem into two subproblems by setting 
(m + -0.3571428572) equal to 0.745736179 and -0.745736179.

Subproblem 1

m + -0.3571428572 = 0.745736179 Simplifying m + -0.3571428572 = 0.745736179 Reorder the terms: -0.3571428572 + m = 0.745736179 Solving -0.3571428572 + m = 0.745736179 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '0.3571428572' to each side of the equation. -0.3571428572 + 0.3571428572 + m = 0.745736179 + 0.3571428572 Combine like terms: -0.3571428572 + 0.3571428572 = 0.0000000000 0.0000000000 + m = 0.745736179 + 0.3571428572 m = 0.745736179 + 0.3571428572 Combine like terms: 0.745736179 + 0.3571428572 = 1.1028790362 m = 1.1028790362 Simplifying m = 1.1028790362

Subproblem 2

m + -0.3571428572 = -0.745736179 Simplifying m + -0.3571428572 = -0.745736179 Reorder the terms: -0.3571428572 + m = -0.745736179 Solving -0.3571428572 + m = -0.745736179 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '0.3571428572' to each side of the equation. -0.3571428572 + 0.3571428572 + m = -0.745736179 + 0.3571428572 Combine like terms: -0.3571428572 + 0.3571428572 = 0.0000000000 0.0000000000 + m = -0.745736179 + 0.3571428572 m = -0.745736179 + 0.3571428572 Combine like terms: -0.745736179 + 0.3571428572 = -0.3885933218 m = -0.3885933218 Simplifying m = -0.3885933218

Solution

The solution to the problem is based on the solutions from the subproblems. m = {1.1028790362, -0.3885933218}

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