raise z to the 2nd power, multiply 8 by the result then subtract what you have from 4

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raise z to the 2nd power, multiply 8 by the result then subtract what you have from 4

Take this algebraic expression in pieces:

• Raise z to the 2nd power: z^2
• Multiply by 8: 8z^2
• Subtract what you have from 4:

4 - 8z^2