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

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