x-y-x-y-if-xy-3-and-x-2-y-2-10-

Question Number 128444 by ZulqarnainHaiderSial last updated on 07/Jan/21

(x + y) (x + y) = ? i f x y = - 3 a n d x^{2} + y^{2} = 10

Commented by BHOOPENDRA last updated on 07/Jan/21

{(x + y)}^{2} = x^{2} + y^{2} + 2 x y

= 10 + 2 (- 3)

= 4