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If x=-3, calculate the value of 2x squared -5 please explain how to do it please.
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5 votes
If x=-3, calculate the value of 2x squared -5

please explain how to do it please.

User CherryDT
by
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1 Answer

6 votes
2x² - 5

WITH x = - 3

2 x (- 3)² - 5
= 2 x 9 - 5
= 18 - 5
= 13
User Tuffwer
by
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