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cari dulu hasil perkalian 25 × 17
25 ×17 = 425
425 + 25 = 450
450 × 2 = 900
jadi, (1/2 × 900) - 25 = 25 × 17
coba cek senidri biar pasti
(1/2 x900)-25=25 x75
maaf yah klo slh
tes sendiri dech biar nggak salah dan pasti