Question

If x - y = 12 and xy = 133, Find x^2+ y^2?​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Step-by-step explanation:

=>X-Y=7

=>X^3-Y^3=133

TO FIND

X^2+Y^2=????

APPLYING FORMULA

=>(X-Y)^3=X^3-Y^3-3XY(X-Y)

=>(7)^3=133-3XY(7)

=>343-133=-21X.Y

=>-210=21X.Y

=>X.Y=-10

NOW :-

(X-Y)^2=X^2+Y^2-2X.Y

49=X^2+Y^2-(-20)

X^2+Y^2=>49-20

X^2+Y^2=29

MAY MY ANSWER HELP YOU :)