do the following sums if x -5= √3 , find x³+ √3x². if y-3=- √2 , find y² – 7y+7.​

Question

do the following sums
if x -5= √3 , find x³+ √3x².
if y-3=- √2 , find y² – 7y+7.​

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Brielle 4 weeks 2021-11-02T07:19:58+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-11-02T07:21:41+00:00

    Answer:

    given \: x = 5 +  \sqrt{3}

     {x}^{2}  = 34 + 10 \sqrt{3}

    now \:  {x}^{3}  +  \sqrt{3}  {x}^{2}  =  {x}^{2} (x +  \sqrt{3} )

    (34 + 10 \sqrt{3} )(5 +  \sqrt{3}  +  \sqrt{3}) = (34 + 10 \sqrt{3}  )(5 + 2 \sqrt{3} ) = 170 + 50 \sqrt{3}  + 68 \sqrt{3}  + 60 = 230 + 118 \sqrt{3}  \:  \: ans

    0
    2021-11-02T07:21:48+00:00

    Step-by-step explanation:

    do the following sums

    if x -5= √3 , find x³+ √3x².

    if y-3=- √2 , find y² – 7y+7.

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