Question

Find the value of the polynomial x³–3x+6 at x=√2

Answer 1

Answer:

6-√2

Step-by-step explanation:

x³=2√2

-3x= -3√2

So, value is

2√2 -3√2 +6

= -√2+6

=6-√2

Hope this will help you !

Hope this will help you !Good Luck

Answer 2

Heya❤

$x {}^{3} - 3x + 6 \\ if \: x = \sqrt{2} \\ then \: substitute \: it \: in \: the \: given \: equation \\ ( \sqrt{2} ) {}^{3} - 3( \sqrt{2} ) + 6 \\ 2 \sqrt{2} - 3 \sqrt{2} + 6 \\ = - \sqrt{2} + 6 \\ = - \sqrt{2} (1 - 3 \sqrt{2} )$

Hope it helps you

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