Expand and simplify. 1.4 (x - 5) 2.3x (2x + 5) 3. (x-4)(5x+2) 4. (2x+7)2 Factor using common factoring (GCF). 1. 5x+20 2. 12x2-16x3 3. 25x3+5x+15x2 4. 10x2y-4xy2+14x2y2

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A: Please see the below picture for detailed solution.

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A: Explained below

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Q: following

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A: Solution of given question is written in below steps.

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