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40 = (a+b)4
a+b = 40/4
a+b = 10
a+b = 6
a.b = 4
jumlah kuadrat kedua bilangan --> a²+b²
a²+b² = (a+b)²-2a.b = 6²-2.4 = 36-8 = 28
a-b=4
berarti angka itu adalah 7 dan 3
nilai a+b=10
2.aku gak tau
Maaf ya kalau salah