tentukan faktor dengan cara melengkapkan kuadrat sempurna
1. x^2 + 5x - 24 = 0
2. 2*x^2 + 13x - 24 = 0
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(x + 8)(x - 3) = 0
x + 8=0 V x - 3=0
x = -8 V x = 3
2. nomor 2 itu dikali semua atau hanya yg x^2 saja?