Question

решите неравенство (m - 5) (m + 4) - (m - 3)^2 > 1

Answer 1

Получается:

m^2 - m - 20 - m^2 + 6m - 9 > 1

5m - 30 > 0

m > 6

Answer 2

(m-5)(m+4)-(m-3)^2>1

(m^2+4m-5m-20)-(m^2-6m+9)>1

m^2 +4m-5m-20-m^2+6m-9>1

5m-29>1

5m>30

m>6