Question

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Answer 1

$\frac{ {a}^{2} + 2ab }{a + b} + \frac{ {b}^{2} }{a + b} = \frac{ {a}^{2} + 2ab + {b}^{2} }{a + b} = \frac{ {(a + b)}^{2} }{a + b}.$
Удачи))))