Jawaban:
-60
Penjelasan dengan langkah-langkah:
x² + 2x - 15 = 0
(x - 3)(x + 5) = 0
x - 3 = 0
x = 3
x1 = 3
x + 5 = 0
x = -5
x2 = -5
x₁.x2 + x².x₂ = 3.(-5) + 3^2.(-5) = -15 + 9.(-5) = -15 + (-45) = -60
koreksi jk salah
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Jawaban:
-60
Penjelasan dengan langkah-langkah:
x² + 2x - 15 = 0
(x - 3)(x + 5) = 0
x - 3 = 0
x = 3
x1 = 3
x + 5 = 0
x = -5
x2 = -5
x₁.x2 + x².x₂ = 3.(-5) + 3^2.(-5) = -15 + 9.(-5) = -15 + (-45) = -60
koreksi jk salah