Question

Solve
-3e^(x+1)-21= -27

Answer 1

e^(x+1)=2

Answer 2

x+1=ln2

Answer 3

x=ln2-1

Answer 4

x=-0.3

Answer 5

(x+4)(x-2)=7

Answer 6

x^2+2x-15

Answer 7

=0

Answer 8

(x+5)(x-3)=0

Answer 9

x=-5 or 3

Answer 10

thank you.

ln(5x-3)-lnx= ln2

Answer 11

5x-3=2x

Answer 12

x=1

Answer 13

\[\log_{3}(x-24)+\log_{3}x= 4 \]

Answer 14

x(x-24)=81

Answer 15

x^2-24x-81=0

Answer 16

x^2-27x+3x-81=0

Answer 17

x(x-27)+3(x-27)=0

Answer 18

(x+3)(x-27)=0

Answer 19

x=-3 or 27

Answer 20

log(x+4)=log(x-2)+1

Answer 21

(x+4)/(x-2)= 10

Answer 22

x+4=10x-20

Answer 23

x=24/9=8/3

Answer 24

Al wants to invest $50,000. His options are either to invest his money into an account paying 1.75% a.p.r. compounded quarterly for 3 years or he can put his money into an account paying 1.7% a.p.r. compounded continuously for 3 years. Which option should he choose? How much extra money would reproduced in the more profitable account?