Question

д)67 степень 2+2*67*45+2015 е) -3600-2*720-144

Answer 1

д) 67²+2×67×45+2025=(67+45)²=112²=12544
е) -3600-2×720-144=-(3600+2×720+144)=-(60²+2×60×12+12²)=-(60+12)²=-72²=-5184