8z^2+2Z-15=0

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Solution for 8z^2+2Z-15=0 equation:


Simplifying
8z2 + 2Z + -15 = 0

Reorder the terms:
-15 + 2Z + 8z2 = 0

Solving
-15 + 2Z + 8z2 = 0

Solving for variable 'Z'.

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

Add '15' to each side of the equation.
-15 + 2Z + 15 + 8z2 = 0 + 15

Reorder the terms:
-15 + 15 + 2Z + 8z2 = 0 + 15

Combine like terms: -15 + 15 = 0
0 + 2Z + 8z2 = 0 + 15
2Z + 8z2 = 0 + 15

Combine like terms: 0 + 15 = 15
2Z + 8z2 = 15

Add '-8z2' to each side of the equation.
2Z + 8z2 + -8z2 = 15 + -8z2

Combine like terms: 8z2 + -8z2 = 0
2Z + 0 = 15 + -8z2
2Z = 15 + -8z2

Divide each side by '2'.
Z = 7.5 + -4z2

Simplifying
Z = 7.5 + -4z2

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