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vlabodo [156]
3 years ago
9

Find the value of x+1/x=3, then find x^3+1/x^3​

Mathematics
2 answers:
kvasek [131]3 years ago
5 0
The first equation is equal to 1/2 so then you plug in 1/2 to the second expression and you get 9.
spin [16.1K]3 years ago
4 0

Answer:

x+1x=3x+1x=3

(x+1x)3=33(x+1x)3=33

x3+3.x2.1x+3.x.1x2+1x3=27x3+3.x2.1x+3.x.1x2+1x3=27

(x3+1x3)+3.x2.1x+3.x.1x2=27(x3+1x3)+3.x2.1x+3.x.1x2=27

x3+1x3+(3x+3x)=27x3+1x3+(3x+3x)=27

x3+1x3+3(x+1x)=27x3+1x3+3(x+1x)=27

x3+1x3+3×3=27x3+1x3+3×3=27

the answer is 18

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Jill's car tires are spinning at a rate of 120 revolutions per minute. If her car tires' radii are each 14 inches, how far does
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Answer:

Step-by-step explanation:

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