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Verified answer
(6x - y)(x + 3y)6x²+18xy-xy-3y²
6x²+17xy-3y²
Matematika SMP Kelas VIII
(6x - y) (x + 3y)
= 6x . x + 6x . 3y - y . x - y . 3y
= 6x² + 18xy - xy - 3y²
= 6x² + 17xy - 3y²