If x+y=5 and xy=-1 then find the value of x2+y2

Question

If x+y=5 and xy=-1 then find the value of x2+y2

in progress 0
Hailey 1 week 2021-09-14T02:12:27+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-09-14T02:13:56+00:00

    Answer:

    27

    Step-by-step explanation:

    x+y=5

    squaring both side,

    x2+y2+2xy=25

    putting the value of xy=-1

    x2+y2-2=25

    x2+y2=27

Leave an answer

Browse
Browse

18:9+8+9*3-7:3-1*13 = ? ( )