Убедитесь что уравнение имеет два корня и найдите эти корни

X^2+3x+2=0

t^2+t-6=0

x^2+9x+18=0

Present Perfect for past actions with present results

Match the actions (a-f) with their results (1-5)

1)Dan is happy because

2)The builders are going home now because

3)Cathy is unhappy because

4)The video isn't playing because

5)Mr and Mrs Smith are in their garden at two o'clock at night because

a)she has failed her exams

b)you have not switched it on

d)they have last their dog, Snowy

e)he has won a competition

f)they have finished work for the day