Question

2h2-h+1 from 3h2-8h-7

Answer 1

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Answer 2

$(3 {h}^{2} - 8h - 7) - (2 {h}^{2} - h + 1) \\ = 3 {h}^{2} - 8h - 7 - 2 {h}^{2} + h - 1 \\ = {h}^{2} - 7h - 8$