x² + 2xy + y² = 25
(x + y)² = 25
x + y = √25
x + y = √5²
x + y = 5
opsi d
semoga membantu dan maaf jika salah
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x² + 2xy + y² = 25
(x + y)² = 25
x + y = √25
x + y = √5²
x + y = 5
opsi d
semoga membantu dan maaf jika salah