4z^2+7z+14=0

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Solution for 4z^2+7z+14=0 equation:


Simplifying
4z2 + 7z + 14 = 0

Reorder the terms:
14 + 7z + 4z2 = 0

Solving
14 + 7z + 4z2 = 0

Solving for variable 'z'.

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

Divide each side by '4'.
3.5 + 1.75z + z2 = 0

Move the constant term to the right:

Add '-3.5' to each side of the equation.
3.5 + 1.75z + -3.5 + z2 = 0 + -3.5

Reorder the terms:
3.5 + -3.5 + 1.75z + z2 = 0 + -3.5

Combine like terms: 3.5 + -3.5 = 0.0
0.0 + 1.75z + z2 = 0 + -3.5
1.75z + z2 = 0 + -3.5

Combine like terms: 0 + -3.5 = -3.5
1.75z + z2 = -3.5

The z term is 1.75z.  Take half its coefficient (0.875).
Square it (0.765625) and add it to both sides.

Add '0.765625' to each side of the equation.
1.75z + 0.765625 + z2 = -3.5 + 0.765625

Reorder the terms:
0.765625 + 1.75z + z2 = -3.5 + 0.765625

Combine like terms: -3.5 + 0.765625 = -2.734375
0.765625 + 1.75z + z2 = -2.734375

Factor a perfect square on the left side:
(z + 0.875)(z + 0.875) = -2.734375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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