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Jewel Wong
Mathematics
25 August, 19:20
What's - 8 (m+2) - 19m? What's - 5b-2 (b-1) ?
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Giada
25 August, 19:43
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1) - 8 (m+2) - 19m = - 8m-16-19m = - 27m-16
2) - 5b-2 (b-1) = - 5b-2b+2 = - 7b+2
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