Question

Find the value of :
$find \: the \: value \: of \: {2x}^3 - 3x + \sqrt{5} \: when \: x = - 3$
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Answer 1

Step-by-step explanation:

2×(-3)3-3×-3+√5

2×-27+9+√5

-54+9+√5

-45+√5

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Answer 2

x=-3

2x³-3x+√5

=2(-3)³-3(-3)+√5

=2(-27)+9+√5

=-54+9+√5

=-45+√5

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