anonymous
  • anonymous
What is the remainder of (2x3 − 18x + 5) ÷ (x − 3)? -5 5 2 3
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
@Peaches15 can you help?
anonymous
  • anonymous
4
Nnesha
  • Nnesha
x-5=0 solve for x and the substitute x in this 2x^3 − 18x + 5 equation for its value

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More answers

Nnesha
  • Nnesha
or you can apply synthetic division
sohailiftikhar
  • sohailiftikhar
it should be -5
anonymous
  • anonymous
-5 is wrong i got it wrong the last time i tried it
Nnesha
  • Nnesha
\(\color{blue}{\text{Originally Posted by}}\) @Nnesha x-5=0 solve for x and the substitute x in this 2x^3 − 18x + 5 equation for its value \(\color{blue}{\text{End of Quote}}\) correction: x-3=0
anonymous
  • anonymous
would it be 3?
sohailiftikhar
  • sohailiftikhar
ok clarify your equation 2x3 or 2x^3
sohailiftikhar
  • sohailiftikhar
solve for this x-3=0 then x=3 put value of x in equation you will get answer
anonymous
  • anonymous
sorry its 2x^3
Nnesha
  • Nnesha
yep so now substitute al x for 3\[\huge\rm 2(3)^3-18(3)+5= ??\]
sohailiftikhar
  • sohailiftikhar
it's 5
anonymous
  • anonymous
so 2-18+5=-11
sohailiftikhar
  • sohailiftikhar
lol nah put value of x
sohailiftikhar
  • sohailiftikhar
you will get 54-54+5=5
Nnesha
  • Nnesha
no substitute x for 3 just replace x
anonymous
  • anonymous
oh okay i think i get it now
Nnesha
  • Nnesha
x for 3\[\huge\rm 2(\color{reD}{3})^3-18(\color{reD}{3})+5= ??\]
sohailiftikhar
  • sohailiftikhar
when you are given like that divided by x-5 or x-3 etc then just put it equal to zero and get value of x put this value in equation you will get your answer
sohailiftikhar
  • sohailiftikhar
good job Nnesha
Nnesha
  • Nnesha
or if you want to apply synthetic division then you need to write highest degree to smallest |dw:1438707198108:dw| 0 for 0x^2 it's not in the equation but we still have to write highest degree to smallest x^3,x^2 and then x
Nnesha
  • Nnesha
thanks.
sohailiftikhar
  • sohailiftikhar
np
Nnesha
  • Nnesha
lol
anonymous
  • anonymous
thanks
Nnesha
  • Nnesha
my pleasure
sohailiftikhar
  • sohailiftikhar
welcome

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