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yg pakai rumus (p x q = a ) ( p + q = a )
jawabannya (y+10)(y+2)
caranya :
-misalkan 12=a
20 =b
-kita cari: x+y= 12
x.y= 20(bilangan harus sama)
- jawabannya 10 dan 2, karena: 10+2=12
10.2=20
caranya :
-misalkan 12=a
20 =b
-kita cari: x+y= 12
x.y= 20(bilangan harus sama)
- jawabannya 10 dan 2, karena: 10+2=12
10.2=20