Question

— 2,5(х - 4) + 0,5х - 24​

Answer 1

- 1.25х(х-4) - 24=0

-1.25x²-5x-24=0

a=-1.25

b=5 (дискриминант)

c=-24

D=b²-4ac

D=5²-4×(-1.25)×(-24)=-95

D= -95