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13-08-2021
Mathematics

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4. 1 less than twice the square of a number

Respuesta :

13-08-2021

Answer:

2(x^2)-1

Step-by-step explanation:

The square of a number is just the number squared. We don't know what the number is so I will just say it is x. So we have 2 times x^2. Then we have to minus 1 from that. So 2(x^2)-1.

Hope this helps! :D

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