if x+y=5andxy=24 then the value of x²+y²is
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Answer:
x² + y² = -23
Step-by-step explanation:
x + y = 5
xy = 24
★ (a + b)² = a² + b² + 2ab
(x + y)² = 5²
→ x² + y² + 2xy = 25
→ x² + y² + (2×24) = 25
→ x² + y² + 48 = 25
→ x² + y² = 25 - 48
→ x² + y² = -23
Therefore x² + y² is -23.
Thanks !
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