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What is the value of the expression 10z2-2z-2 when z=3?
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What is the value of the expression 10z2-2z-2 when z=3?

User AkashBhave
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1 Answer

6 votes

Answer:

82 is the value of the expression when z = 3

Explanation:

Plug in 3 to the expression.


10z^(2) -2z - 2\\ 10(3)^(2) - 2(3) - 2

Then solve the expression.

90 - 6 - 2 = 82

We got 90 when we squared 3 and multiplied that number (9) by 10, resulting in 90.

User Emad Armoun
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