Question

If x - y = -9 and xy = -20, then find x2 + y2 ?

A) 61 B) 41 C) 81 D) 51

Answer 1

Answer:

x — y = — 9

—5 — (4)

—5 —4

= —9

xy = —20

(—5) × 4

= —20

THERE FORE,

x = — 5

y = 4

${x}^{2} + {y}^{2} \\ { - 5}^{2} + {4}^{2} \\ 25 + 16 \\ \\ = 41$

THE OPTION IS

B

Step-by-step explanation:

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