Question

(m-5)(m+5)-(5+m)
Упростите выражение

Answer 1

m²-25-5-m=m²-m-30=(м-6)(м+5)
по теореме виетта
m1+m2=1
м1*м2=30
м1=6
м2=-5

Answer 2

(m-5)(m+5)-(5+m) = (m²-25)-(5+m)