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Meva wulandari
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= 200 150 = - 1. 15x – 23y + 22 31x + 42y - 1 23.r – 454 - 332 2 = 100 — а. 5x - Зу у 10 x² – 5x + 6 3х - бу +2 = 10 b. x2 + y2 + z2 = 8 - С. 5x - 3y + 2 = 20 3х +4y - 2 = 15 2x - 5y - 3x = 10 -
= 200 150 = - 1. 15x – 23y + 22 31x + 42y - 1 23.r – 454 - 332 2 = 100 — а. 5x - Зу у 10 x² – 5x + 6 3х - бу +2 = 10 b. x2 + y2 + z2 = 8 - С. 5x - 3y + 2 = 20 3х +4y - 2 = 15 2x - 5y - 3x = 10 -
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Putra Gema Nusa
Rockstar Teacher •GURU SMA
0 5x - 3y = 10 5x - 10 3 # X=2 (S 2 0 : (x,y) = {(2,1),(1, ) 5.2 -10 a y = = 0 14 40 g 3 3 a. modal : 0 GX-3y = 10 © y +6 = =X²-5X + 6 Ditanya: x, y = ... # Subtitusi e ke 0 5x – 3y = 10 5X-3(x2–5x+6) = 5x – 3x? + 15%-18 = 10 - 3x2 + 20% - 28 = 0 34²-200 +28=0 1/2 (3x - 14) (3x-6)=0 6 (3x – 14)(x-2) = 0 Dahamify = 14 # x= 12 5. - 10 y cs 는 3 ni 30 70 11 3 3 3 0 Đ WI- 40 L = 3 3 ws X VX-2 plo 3 3
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