5c^2-14c+40=

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Solution for 5c^2-14c+40= equation:


Simplifying
5c2 + -14c + 40 = 0

Reorder the terms:
40 + -14c + 5c2 = 0

Solving
40 + -14c + 5c2 = 0

Solving for variable 'c'.

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

Divide each side by '5'.
8 + -2.8c + c2 = 0

Move the constant term to the right:

Add '-8' to each side of the equation.
8 + -2.8c + -8 + c2 = 0 + -8

Reorder the terms:
8 + -8 + -2.8c + c2 = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -2.8c + c2 = 0 + -8
-2.8c + c2 = 0 + -8

Combine like terms: 0 + -8 = -8
-2.8c + c2 = -8

The c term is -2.8c.  Take half its coefficient (-1.4).
Square it (1.96) and add it to both sides.

Add '1.96' to each side of the equation.
-2.8c + 1.96 + c2 = -8 + 1.96

Reorder the terms:
1.96 + -2.8c + c2 = -8 + 1.96

Combine like terms: -8 + 1.96 = -6.04
1.96 + -2.8c + c2 = -6.04

Factor a perfect square on the left side:
(c + -1.4)(c + -1.4) = -6.04

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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