Math, asked by nk5407015gmailcom, 9 months ago

The value of a polynomial xcube+7xsquare +4x-9 at x=-1 is

Answers

Answered by binnymajumder

Answer:

-7

Step-by-step explanation:

Put x=-1 in polynomial

(-1)^3+7×(-1)^2+4×(-1)-9

=-1+7-4-9=-7

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Answered by Anonymous

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$\huge \sf {Given:-}$

$\large \sf {Polynomial \: x^{3} + 7x^{2} + 4x - 9}$

$\large \sf {Value \: of \: x \: is \: -1}$

$\huge \sf {To \: Find:- }$

$\large \sf {The \: value \: of \: the \: given \: polynomial}$

$\huge \sf {Solution:-}$

$\large \sf {By \: putting \: the \: value \: of \: x} \\ \large \sf { in \: the \: given \: polynomial, \: we \: get}$

$\large \sf {(-1)^{3} + 7(-1)^{2} + 4(-1) - 9}$

$\large \sf {or, \: -1 + 7 - 4 - 9}$

$\large \sf {or, \: 6 - 13}$

$\large \sf {or, \: -7}$

$\large \sf {FOLLOW \: ME \: PLEASE}$

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