Question

Simplify the sum.

Answer 1

like a first step write

d^2 +d-30=(d+6)(d-5)

so and continue with denominator and ...

Answer 2

so and after will see clearly sure what will can simplifie from numerator and denominator


ok ?

Answer 3

ok

Answer 4

good luck

bye

Answer 5

why ?

can you rewrite it here now ?

Answer 6

make the calcules here please now

Answer 7

(d+6)(d-5) d+6
---------- = -----
(d+8)(d-5) d+8

so for the first fraction

and now can you make the same for second fraction ?

Answer 8

ok

Answer 9

how will be ?

Answer 10

(d+6)(d+8)
---------- =
(d-8)(d+6)

do you understand it now ? and can you continue it ?

Answer 11

yes...thank you for your help
bye :)

Answer 12

ok

good luck

bye

Answer 13

thanks

Answer 14

yw

Answer 15

was my pleasure

Answer 16

:)

Answer 17

d+6 d+8
---- - ----- =
d+8 d-8

how do you calcule it ?

Answer 18

i cancelled things out

Answer 19

yes but after this you need just make this subtraction

can you calcule it ?

Answer 20

o thats probably where i went wrong

Answer 21

yes sure

you need calcule the common denominator and after this you make the calcules and will get the right answer

Answer 22

this is easy

Answer 23

ok

Answer 24

i like see the right answer

ok ?

Answer 25

its either B. or C right...or am i wrong

Answer 26

calcules

write it here please

Answer 27

could you tell me if im right or wrong about B or C

Answer 28

so if you check it about the denominator common so than can being right A,B and C too

Answer 29

(d-8)(d+6) (d+8)(d+8)
---------- - ----------- =
d^2 - 64 d^2 -64

so can you continue it now ?

Answer 30

yeah i guess

Answer 31

d^2 -2d -48 - (d^2 +16d +64)
---------------------------- = ------------------------
d^2 -64

sorry you need assuming these fractions and not subtracting these

so than will be

d^2 -2d -48 +d^2 +16d +64 2d^2 +14d +16
--------------------------- = ----------------
d^2 -64 (d+8)(d-8)

--- so than will be right sure the a.

ok ?

do you understand it now sure right ?