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(x+5)(2x-7) = 2xpangkat 2 - 7x + 10 x - 35
= 2x pangkat 2 + 3x - 35
(7-2x)(2x-7) = 14x - 49 - 4x pangkat 2 + 14
= 4x pangkat 2 + 14x - 35
bantu ucapan terimakasih yaaa
2. 5xpngkt 2-x+25x-5
5xpngkt2 + 24x-5
3.14x-49-4xpngkt2-14x
-4xpngkt2-49