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Putra Gema Nusa
Rockstar Teacher GURU SMA
» X, = 2+PG Y = (2+1612-9(2+75) -s 4+975 +5-8=415-5 --4-0 (2+G6,-4) » X₂ = 2-ig 2-15 Yz = (2-75)2-412-F) -s =4-afs +5-8tsitsus -4 (2-8f ,-4) - modal Y, =X²-4x-5 Y₂ = -X² + 4x-3 story # Cara subtitusi y, = 42 X²-46-5=-X² + 4x-3 2x²-8x-2=0 x?-4x -1 = 0 = (-9) ► /1-4)²-4.1.(-1) X 1,2 = nio {/2+15,-4), (2-15,-4)} 2.1 4+ N 16+4 o 2 4 + /20 a + 285 J) = 2 EFE 2 2 Pahamify
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