Shookii
Shookii Shookii
  • 22-10-2021
  • Mathematics
contestada

What is the value of the expression below if z=6
2z²-8z-2

Please help if possible! Thank you!

Respuesta :

MalakYaqoot
MalakYaqoot MalakYaqoot
  • 22-10-2021

Answer:

[tex]22[/tex]

Step-by-step explanation:

[tex]2 {z}^{2} - 8z - 2[/tex]

[tex]2 \times {6}^{2} - 8 \times 6 - 2[/tex]

[tex]2 \times 36 -8 \times 6 - 2[/tex]

[tex]72 - 8 \times 6 - 2[/tex]

[tex]72 - 48 - 2[/tex]

[tex]24 - 2 = 22[/tex]

Answer Link
rinzilla14
rinzilla14 rinzilla14
  • 22-10-2021

Answer:

22

Step-by-step explanation:

We know z=6

2z²-8z-2

Take out the z for 6.

2(6)²-8(6)-2

1.  2(36)-48-2

2. 72-50

3. 22

Answer Link

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