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CBSE Class 9 Answered

Find the value of p(x) =2/3x^3 -5x^2+?2 at I) x=-1
Asked by mm9467821 | 28 Aug, 2020, 14:39: PM
answered-by-expert Expert Answer
begin mathsize 16px style straight p left parenthesis straight x right parenthesis space equals space 2 over 3 straight x cubed minus 5 straight x squared plus square root of 2 space space at space straight x space equals space minus 1 space space space space space space space space space equals space 2 over 3 left parenthesis negative 1 right parenthesis cubed minus 5 left parenthesis negative 1 right parenthesis squared plus square root of 2 space space space space space space space space space space space space space space space space space space space space space space equals fraction numerator negative 2 minus 15 plus 3 square root of 2 over denominator 3 end fraction space space space space space space space space space space space space equals fraction numerator negative 17 plus 3 square root of 2 over denominator 3 end fraction end style
Answered by Yasmeen Khan | 28 Aug, 2020, 16:51: PM

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