# Why is x^3(7x^2+7x+6) = x(7x^2+7x+6)^3 ?Watch

#1
Can someone please explain this because when I sub x for any number the results are different when the exponent is in a different place. :3
0
4 years ago
#2
That isn't generally true, it's only true when x = 0 (or some other root of the polynomial you create, if it has roots that is).

EDIT: I'm assuming you mean .
0
4 years ago
#3
(Original post by romama)
Can someone please explain this because when I sub x for any number the results are different when the exponent is in a different place. :3
It isn't

why did you think that it was?
0
4 years ago
#4
(Original post by romama)
Can someone please explain this because when I sub x for any number the results are different when the exponent is in a different place. :3
is this an equation to solve?
0
4 years ago
#5
The left hand side is a degree 5 polynomial, while the right hand side a 7...
0
4 years ago
#6
(Original post by romama)
Can someone please explain this because when I sub x for any number the results are different when the exponent is in a different place. :3
It isn't true in general if you've written it correctly!!
0
4 years ago
#7
(Original post by romama)
Can someone please explain this because when I sub x for any number the results are different when the exponent is in a different place. :3
there are only seven values of x for which this is true. The only real one being 0 (other 6 are complex).
0
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