-5m^2-7=-3m

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Solution for -5m^2-7=-3m equation:


Simplifying
-5m2 + -7 = -3m

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

Solving
-7 + -5m2 = -3m

Solving for variable 'm'.

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

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

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

Divide each side by '-5'.
1.4 + -0.6m + m2 = 0

Move the constant term to the right:

Add '-1.4' to each side of the equation.
1.4 + -0.6m + -1.4 + m2 = 0 + -1.4

Reorder the terms:
1.4 + -1.4 + -0.6m + m2 = 0 + -1.4

Combine like terms: 1.4 + -1.4 = 0.0
0.0 + -0.6m + m2 = 0 + -1.4
-0.6m + m2 = 0 + -1.4

Combine like terms: 0 + -1.4 = -1.4
-0.6m + m2 = -1.4

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 = -1.4 + 0.09

Reorder the terms:
0.09 + -0.6m + m2 = -1.4 + 0.09

Combine like terms: -1.4 + 0.09 = -1.31
0.09 + -0.6m + m2 = -1.31

Factor a perfect square on the left side:
(m + -0.3)(m + -0.3) = -1.31

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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