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Verified answer
(x-7)(x-8)semoga membantu. maaf kalau ada kesalahan dalam pengerjaan soal. terima kasih :)
= (x-7)(x-8)
Pembuktian
(x-7)(x+8)
= x^2 - 8x - 7x + 56
= x^2 -15x + 56
Catatan: ^=pangkat