Question

выполните действия (x+5)(x^2-5x+25)-125

Answer 1

 x =(-2-√12)/2=-1-√ 3 = -2.732  x =(-2+√12)/2=-1+√ 3 = 0.732

Answer 2

5х^2-125=5(х^2-25)=5(х-5)(х+5)