(2,5^-2,3^):5,7^-2*5,7*5,9+5,9^

Question

(2,5^-2,3^):5,7^-2*5,7*5,9+5,9^

Answer 1

= (2,5-2,3)(2,5+2,3) / (5,7-5,9)² = 0,2*4,8 / (-0,2)² = 4,8/0,2 = 48/2 = 24