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yuc003 yuc003
  • 09-02-2015
  • Mathematics
Answered

if x=-3, calculate the value of 2x squared -5


please explain how to do it please.

Verified Answer :

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  • 09-02-2015

2x² - 5

WITH x = - 3

2 x (- 3)² - 5
= 2 x 9 - 5
= 18 - 5
= 13

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