check whether 7+3x is a factor of 3x3+7x.
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Apply remainder theorem
=>7 + 3x =0
=> 3x = - 7
=> x = - 7/3
Replace x by - 7/3 we get
=>3x3 + 7x
=>3(-7/3)3 + 7(-7/3)
=>3(-343/27) – 49/3
=> (-343/9) – 49/3
This value is not equal to 0
we have checked that 7 + 3x is not a factor of expression 3x3 + 7x
=>7 + 3x =0
=> 3x = - 7
=> x = - 7/3
Replace x by - 7/3 we get
=>3x3 + 7x
=>3(-7/3)3 + 7(-7/3)
=>3(-343/27) – 49/3
=> (-343/9) – 49/3
This value is not equal to 0
we have checked that 7 + 3x is not a factor of expression 3x3 + 7x
Raghav3333:
pls brainliest
plz send the question again
prove that (a+b)3+(b+c)3+(c+a)3-3(a+b)(b+c)(c+a)=x3+y3+z3-3xyz
sorry
a3+b3+c3-3abc
first mark as brainliest
then i will send the answer from inbox
what is the next question
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