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If x+y=8 and xy=15 then find …

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If x+y=8 and xy=15 then find the value of x^2+y^2 Please answer my question...

    • Posted by Aadya Raikar 5 years, 10 months ago

    CBSE > Class 09 > Mathematics
    • 5 answers

    Gyayak Jain 5 years, 10 months ago

    50-1+100-50-50=??

    0Thank You

    Hitesh Mahendra Mahajan 5 years, 10 months ago

    36

    0Thank You

    Shashank Sah 5 years, 10 months ago

    x +y = 8 xy = 15 x+y =8 Squaring both side (x+y)^2={8}^2 x^2+y^2+2xy=64…........(xy=15) x^2+y^2+30=64 x^2+y^2=64-30 x^2+y^2=34

    1Thank You

    Shashank Sah 5 years, 10 months ago

    x

    0Thank You

    Yogita Ingle 5 years, 10 months ago

    x + y = 8 ............ (i)

    xy = 15 ........... (ii)

    (x+y)2 = 82

    x2 + y2 + xy = 64

    x2 + y2 + 15 = 64

    x2 + y2 = 64 - 15

    x2 + y2 = 49

    0Thank You

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    Posted by Yash Pandey 6 months ago

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