Question

simplify the following question :

Calculate the value of 2x² - 4 if x = 3

(step by step explanation)​

Answer 1

2×9-4

18-4

14

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Answer 2

Put the value of x=3 in the equation 2x^2 - 4, we get
=2(3)^2-4
=2(9)-4
=18-4
=14 ans