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olga_2 [115]
3 years ago
6

What is the value of the expression below when z = 6

Mathematics
1 answer:
Oduvanchick [21]3 years ago
7 0

Answer:

81

Step-by-step explanation:

2z^2+2z-3

Using PEMDAS/BODMAS, we will have to do the exponent first, which is z^{2}.

Substitute the variable z with 6, since z = 6.

2(6^{2} )+2(6)-3

6^{2} =36.

Thus, we will get

2(36)+2(6)-3

Solve the multiplication next.

72+12-3

Finally, add/subtract the numbers:

84-3

81

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