Mathematics
10 Online
OpenStudy (anonymous):
4s^7-500s^4
Join the QuestionCove community and study together with friends!
Sign Up
jhonyy9 (jhonyy9):
4s4(s3 -125)=4s4(s3 -5(3)) =4s4(s-5)(s2 +5s +25)
4s4 is s on exponent 4
125=5 on exponent 3
there us formula (a3 -b3)=(a-b)(a2 +ab+b2)
jhonyy9 (jhonyy9):
ok ?
OpenStudy (anonymous):
what
jhonyy9 (jhonyy9):
understandably ?
OpenStudy (anonymous):
how u get the 3 exponent did u subtract it
Join the QuestionCove community and study together with friends!
Sign Up
jhonyy9 (jhonyy9):
4s4 * s3 = 4s7 right ?
OpenStudy (anonymous):
oh ok
jhonyy9 (jhonyy9):
than all is ok ?
OpenStudy (anonymous):
for the 4 and 500 how do i figure that out to get the answer
OpenStudy (anonymous):
446s^3
Join the QuestionCove community and study together with friends!
Sign Up
jhonyy9 (jhonyy9):
500=4*125
jhonyy9 (jhonyy9):
ok ?
OpenStudy (anonymous):
125*4=500
jhonyy9 (jhonyy9):
yes
jhonyy9 (jhonyy9):
can you give me medal for ?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
So what is the factor
OpenStudy (anonymous):
125s^3
jhonyy9 (jhonyy9):
no
jhonyy9 (jhonyy9):
there is after you have subtracted 4s4 will remain s3 -125 = s3 -(5)3 what is s cubed and 5 cubed
yes ?
jhonyy9 (jhonyy9):
so and after you can us formula a3 -b3 =(a-b)(a2 +ab +b2)
Join the QuestionCove community and study together with friends!
Sign Up
jhonyy9 (jhonyy9):
hope that you know it ?
OpenStudy (anonymous):
me too lol
jhonyy9 (jhonyy9):
why ?
OpenStudy (anonymous):
not good with polynomials this my first course in this an it sucks
jhonyy9 (jhonyy9):
this is very easy
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
just the variables what make it confusing
jhonyy9 (jhonyy9):
what not is understandably for you now ?
OpenStudy (anonymous):
how u get the answer to the question
jhonyy9 (jhonyy9):
so the first step you see that 4s4 can be subtracted like factor common yes ?
OpenStudy (anonymous):
did you say a number into 500 and 4 or did u divide 500divided by 4 to get 125
Join the QuestionCove community and study together with friends!
Sign Up
jhonyy9 (jhonyy9):
yes roght 500divided by 4 is 125
OpenStudy (anonymous):
ok so what is the answer
jhonyy9 (jhonyy9):
sorry wann to
OpenStudy (anonymous):
125s^3
jhonyy9 (jhonyy9):
be right
Join the QuestionCove community and study together with friends!
Sign Up
jhonyy9 (jhonyy9):
no
jhonyy9 (jhonyy9):
because you subtract 4s4
jhonyy9 (jhonyy9):
4s on exponent 4
OpenStudy (anonymous):
ok
jhonyy9 (jhonyy9):
and will remain s3 -125
Join the QuestionCove community and study together with friends!
Sign Up
jhonyy9 (jhonyy9):
yes ?
OpenStudy (anonymous):
i had son of it correct just forgot the minus
OpenStudy (anonymous):
i have to remember when it factor i have to use the for example 4s-5
jhonyy9 (jhonyy9):
not is sure this is in condition what terms you have there in exercise
OpenStudy (anonymous):
no term just an example
Join the QuestionCove community and study together with friends!
Sign Up
jhonyy9 (jhonyy9):
ok
OpenStudy (anonymous):
to remind myself
jhonyy9 (jhonyy9):
so now there you have s3 -125
OpenStudy (anonymous):
right the exponent go on left side in this case with the answer for the base on the right
OpenStudy (anonymous):
ty
Join the QuestionCove community and study together with friends!
Sign Up
jhonyy9 (jhonyy9):
now is sure for you clearly ?
jhonyy9 (jhonyy9):
ok good luck bye