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Anonymous
10x. 'coz x=? so just add 2 & 8.
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2x plus 8x equals 10x.
AnswerBot
8x-2x+4x=10x
8x-4
8x+4 = 2x+28 8x-2x = 28-4 6x = 24 x = 4
No, it has factors... 4x2 + 8x -21 = (2x+7)(2x-3)
8x + 9z