5Z^2-5Z+4-Z(3Z-4)=

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Solution for 5Z^2-5Z+4-Z(3Z-4)= equation:


Simplifying
5Z2 + -5Z + 4 + -1Z(3Z + -4) = 0

Reorder the terms:
5Z2 + -5Z + 4 + -1Z(-4 + 3Z) = 0
5Z2 + -5Z + 4 + (-4 * -1Z + 3Z * -1Z) = 0
5Z2 + -5Z + 4 + (4Z + -3Z2) = 0

Reorder the terms:
4 + -5Z + 4Z + 5Z2 + -3Z2 = 0

Combine like terms: -5Z + 4Z = -1Z
4 + -1Z + 5Z2 + -3Z2 = 0

Combine like terms: 5Z2 + -3Z2 = 2Z2
4 + -1Z + 2Z2 = 0

Solving
4 + -1Z + 2Z2 = 0

Solving for variable 'Z'.

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

Divide each side by '2'.
2 + -0.5Z + Z2 = 0

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + -0.5Z + -2 + Z2 = 0 + -2

Reorder the terms:
2 + -2 + -0.5Z + Z2 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -0.5Z + Z2 = 0 + -2
-0.5Z + Z2 = 0 + -2

Combine like terms: 0 + -2 = -2
-0.5Z + Z2 = -2

The Z term is -0.5Z.  Take half its coefficient (-0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
-0.5Z + 0.0625 + Z2 = -2 + 0.0625

Reorder the terms:
0.0625 + -0.5Z + Z2 = -2 + 0.0625

Combine like terms: -2 + 0.0625 = -1.9375
0.0625 + -0.5Z + Z2 = -1.9375

Factor a perfect square on the left side:
(Z + -0.25)(Z + -0.25) = -1.9375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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