Question

Give exact and approximate solutions to three decimals place.

x^2+18x+81=1

Answer 1

- this is (x+9)*2 =1 --- x+9=1 --- x=-8
64-144+80=0

Answer 2

ok so what are the decimals I am confused?

Answer 3

have not decimals

Answer 4

it is asking for exact answer then in form i ?

Answer 5

so i put 0

Answer 6

here you not will get i never - complex numbers like solution

Answer 7

but now i see that is again right solution -10 too

Answer 8

because -10 +9=(-1)*2 =1

Answer 9

ok

Answer 10

this one is the same (x+7)^2=64

Answer 11

so in finaly we can seeing that there are two solutions -10 and -8

Answer 12

r we on the first or second one

Answer 13

here in the secongd equation you have (x+7)*2 = 64 = 8*2 - so if you make radical from both sides you get x+7=8 --- x=1

Answer 14

k

Answer 15

so x=1

Answer 16

yes

Answer 17

hope so much that i have helped to you and that all is clearly

Answer 18

yes I have some more you want to help me with those too please

Answer 19

- for you being sure rigth in solutions you need to make probe

Answer 20

ok let's go

Answer 21

Determine the nature of the solution if the equation

y^2= 2/3 y+ 3/7

the y is with the whole 2/3 not just the 3

Answer 22

one real solution?
two non- real solution?
two real solution?

Answer 23

multiply choice here

Answer 24

please us parentheses

Answer 25

y^2=(2/3y)+ (3/7)

Answer 26

y*2 = 2/3y +3/7 what is the denominator common ?

Answer 27

the y is with the whole (2/3) not just the 3

Answer 28

21

Answer 29

i want to make you understand clearly

Answer 30

why 21 ?

Answer 31

what are there like denominators ?

Answer 32

7*3=21
3*7=21

that is the closest they have togather

Answer 33

and y there not is ?

Answer 34

becaus eyou have wrote 2/3y and not 2y/3

Answer 35

I do not understand what you are asking?

Answer 36

y is with the whole fraction 2/3 I am not sure how to write other then


2
----y
3

Answer 37

how i have wrote to you before this you can write 2y/3

Answer 38

ok

Answer 39

this is clearly ?

Answer 40

yes!

Answer 41

if yes what is the denominator common ?

Answer 42

ok 21 and in this case you need multiply the first term with ?

Answer 43

I still am getting 21! Is that not correct or should it be 21y

Answer 44

ok yes is correct than y not is in denominator is 21

Answer 45

ok

Answer 46

and now how you will continue ?

Answer 47

so 21 is the denominator?

Answer 48

if the denominator common is 21 what you need to do ?

Answer 49

multiplie the first term with ?

Answer 50

if you have y*2 =2y/3 +3/7

Answer 51

because y*2 have denominator 1 you need to multiplie this term with 21

Answer 52

this is clearly ?