Question

if x+y= -4 and xy=2 then (1) x^+y^=?
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Answer 1

⭐Given:

• x+y= -4

• xy=2

⭐To Find:

• x²+y²=?

⭐Solution:

Since,

x²+y²=(x+y) ²-2xy

: . x²+y²=(-4) ²-2×2

: . x²+y²= 16×-4

: . x²+y²= -64