Answer:
1) x= 3i, x= - 3i
2) x= +i
, x = - i
Step-by-step explanation:
1) x^2+9=0
(x+3i)(x-3i)=0
x= 3i, x=-3i
2) x^2-4=-11
x^2=-7
x= ±i
x= +i, x = - i
hope this helps!! :))
As all the males could have a driving license then the maximum is 70.
50 of the applicants are female and could all have a driving license. If there are 80 in total who have a driving license then the minimum number of males having a license is 30
3a(4a^2 - 5a + 12)=12a^3-15a^2+36a (C)
Well I believe that the answer is five. Simply because 10 divided by 5 is 2 and -15 divided by 5 is -3
