Question

3m-2(m+1)-m(3m+5m)+(57-32)< 5m-34(3m-4)+(14m+ или нет! не знаю как решать(

Answer 1

3m-2m-2-3$m^{2}$-5$m^{2}$+57-32\\\5m-102m-136+14m+50
-2$m^{2}$+84m+109\\\\0 делим на -1
2$m^{2}$-84m-109\\\0
D= 7928
m1=$\frac{84+ 2\sqrt{1982} }{4} = \frac{2(42+ \sqrt{1982} )}{4} = \frac{42+ \sqrt{1982} }{2}$
m2=$\frac{84-2 \sqrt{1982} }{4} = \frac{2(42- \sqrt{1982}) }{4} = \frac{42- \sqrt{1982} }{2}$