Namrata’s work to find the product of 7m2n and (−6m3n –3n5) is shown. Step 1: 7m2n × (−6m3n –3n5) Step 2: 7m2n × (−6m3n) − 7m2n × (−3n5 ) Step 3: −42m5n2+ 21m2n6 In which step did she make her first error and what is the correct step?
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