6a^2+29a-(-42)=0

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Solution for 6a^2+29a-(-42)=0 equation:


Simplifying
6a2 + 29a + -1(-42) = 0

Multiply -1 * -42
6a2 + 29a + 42 = 0

Reorder the terms:
42 + 29a + 6a2 = 0

Solving
42 + 29a + 6a2 = 0

Solving for variable 'a'.

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

Divide each side by '6'.
7 + 4.833333333a + a2 = 0

Move the constant term to the right:

Add '-7' to each side of the equation.
7 + 4.833333333a + -7 + a2 = 0 + -7

Reorder the terms:
7 + -7 + 4.833333333a + a2 = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 4.833333333a + a2 = 0 + -7
4.833333333a + a2 = 0 + -7

Combine like terms: 0 + -7 = -7
4.833333333a + a2 = -7

The a term is 4.833333333a.  Take half its coefficient (2.416666667).
Square it (5.840277779) and add it to both sides.

Add '5.840277779' to each side of the equation.
4.833333333a + 5.840277779 + a2 = -7 + 5.840277779

Reorder the terms:
5.840277779 + 4.833333333a + a2 = -7 + 5.840277779

Combine like terms: -7 + 5.840277779 = -1.159722221
5.840277779 + 4.833333333a + a2 = -1.159722221

Factor a perfect square on the left side:
(a + 2.416666667)(a + 2.416666667) = -1.159722221

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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