Question

-√2 is a zero of the polynomial p(X)=x^3-2x?why?​

Answer 1

$\huge \boxed{ \red {\blue{ \green{ \orange{ \pink{ \purple{a}n}s}w}e}r : - }}$

${( \sqrt{ - 2} )}^{3} - 2 \sqrt{2} ) = 0$

$= 2 \sqrt{2} - 2 \sqrt{2} = 0$

$\huge \boxed {\boxed{ \boxed{ \blue{0 \: \: = \: \: 0}}}}$

Hence proved

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