Question

(2.39)*2-(1.61)*2÷2.39-1.61

Answer 1

hey here is your answer

$\frac{ {2.39}^{2} - {1.61}^{2} }{(2.39 - 1.61)} \\ \\ = using \: identity \\ \\ = \frac{(2.39 - 1.61)(2.39 + 1.61)}{(2.39 - 1.61)} \\ \\ = (2.39 + 1.61) \\ = 4 \: \: \: \: is \: the \: answer \:$

hope this helps you