Question

{[(5·397-17·5):($2^{2}$·5-1)+(1985:392)²]:$5^{2}$+$3^{2}$·5}:$5^{2}$=Calculeaza

Answer 1

={[(1985-85):(4·5-1)+5²]:25+9·5}:25=
={[1900:19+25]:25+45}:25
=[(100+25):25+45]:25
=(125:25+45):25
=(5+45):25
=50:25=2

Answer 2

{[(5·397-17·5):(2²·5-1)+(1985:397)²]:5²+3²·5}:5²=
{[(1985-85):19+5²]:25+9·5}:25=
[(1900:19+25):25+45]:25=
(125:25+45):25=
50:25=2