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Mathematics 10 Online
OpenStudy (anonymous):

4s^7-500s^4

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

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

jhonyy9 (jhonyy9):

500=4*125

jhonyy9 (jhonyy9):

ok ?

OpenStudy (anonymous):

125*4=500

jhonyy9 (jhonyy9):

yes

jhonyy9 (jhonyy9):

can you give me medal for ?

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)

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

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

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

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

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

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

jhonyy9 (jhonyy9):

now is sure for you clearly ?

jhonyy9 (jhonyy9):

ok good luck bye

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