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  • 15-10-2021
  • Mathematics
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What is the value of the expression below when z=6
2z^2 -8z-2

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Аноним Аноним
  • 15-10-2021

Answer:

22

Step-by-step explanation:

Substitute: 2 · 6² - 8 · 6 - 2

Calculate the power: 2 × 36 - 8 × 6 - 2

Calculate the product or quotient: 72 - 8 × 6 - 2

Calculate the product or quotient: 72 - 48 - 2

Reorder and group certain terms: ( 72 - 2 ) - 48

Calculate: 70 - 48

Calculate the sum or difference: 22

Answer: 22

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