Mathematics, 22.09.2019 07:00 Arellano4672

'which of the following is equivalent to the expression (x+3)(x-7)+(x+8)(x+3)? ' i use the distributive property and added etc. and my outcome was 2x^2+7x+3. i got the answer as (2x+1)(x+3) but only because it was an answer choice and was equivalent to 2x^2+7x+3. where did the 1 and 3 come from in (2x+1)(x+

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'which of the following is equivalent to the expression (x+3)(x-7)+(x+8)(x+3)? ' i use the distribut...