2. If a2+b2 = 117, ab= 54, Find a b a) 6 b) 4 c) 5 d) 7​

Question

2. If a2+b2 = 117, ab= 54, Find a b
a) 6 b) 4 c) 5 d) 7​

in progress 0
Rose 2 months 2021-12-03T08:07:02+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-12-03T08:08:18+00:00

    Answer:

    (a+b)^2=a^2+b^2+2ab=117+2(54)

    (a+b)^2=117+108=225

    (a+b)=15

    (a-b)^2=a^2+b^2–2ab=117–108

    (a-b)^2=9

    (a-b)=3

    (a+b)/(a-b)=15/3

    (a+b)/(a-b)=5

Leave an answer

Browse

14:4+1-6*5-7*14:3+5 = ? ( )