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07-10-2020
Mathematics

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2. Explain and correct the error made by a student who simplified this expression.
–2x + 7x + 8
(–2 + 7 + 8)x
13x

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cam2732 cam2732

07-10-2020

there is no x in 8 so it should’ve been
-2x + 7x + 8 = x(-2+7) + 8

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