Math, asked by anvitha6, 1 year ago

if [x-y]=5 & xy=6 then x^2+y^2=

Answers

Answered by abhi178

( x - y) = 5
take square both side
x^2 + y^2 -2xy =25
x^2 + y^2 =25 +2xy
=25 + 2(6) = 25 + 12
=37

tinapatinsome: You cannt square both sides you have to use formula

Answered by tinapatinsome

Hi!
You have to use the formula [tex](x-y) ^{2} = x^{2} + y^{2} -2xy
So basically you have to square the (x-y) and solve.

Therefore the answer is 37.

Hope this helps you!

tinapatinsome: So now you have to substitute the values given

tinapatinsome: x-y is given as 5

abhi178: now you take it easily by put value

tinapatinsome: Wait I will send pic

abhi178: yes

tinapatinsome: yess correct

tinapatinsome: sorry abhi your answer is correct

tinapatinsome: but you have to use formula

abhi178: dear use general way which understand another person easily

tinapatinsome: ou won't get marks then

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