Z^2-2z-7=0

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Solution for Z^2-2z-7=0 equation:


Simplifying
Z2 + -2z + -7 = 0

Reorder the terms:
-7 + Z2 + -2z = 0

Solving
-7 + Z2 + -2z = 0

Solving for variable 'Z'.

Move all terms containing Z to the left, all other terms to the right.

Add '7' to each side of the equation.
-7 + Z2 + 7 + -2z = 0 + 7

Reorder the terms:
-7 + 7 + Z2 + -2z = 0 + 7

Combine like terms: -7 + 7 = 0
0 + Z2 + -2z = 0 + 7
Z2 + -2z = 0 + 7

Combine like terms: 0 + 7 = 7
Z2 + -2z = 7

Add '2z' to each side of the equation.
Z2 + -2z + 2z = 7 + 2z

Combine like terms: -2z + 2z = 0
Z2 + 0 = 7 + 2z
Z2 = 7 + 2z

Simplifying
Z2 = 7 + 2z

Reorder the terms:
-7 + Z2 + -2z = 7 + 2z + -7 + -2z

Reorder the terms:
-7 + Z2 + -2z = 7 + -7 + 2z + -2z

Combine like terms: 7 + -7 = 0
-7 + Z2 + -2z = 0 + 2z + -2z
-7 + Z2 + -2z = 2z + -2z

Combine like terms: 2z + -2z = 0
-7 + Z2 + -2z = 0

The solution to this equation could not be determined.

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