value of x3-1/x3 when x-1/x=5
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Answered by
8
Answer :
Given, x - 1/x = 5
Now, x³ - 1/x³
= (x - 1/x)³ + (3 × x × 1/x)(x - 1/x)
= 5³ + (3 × 5)
= 125 + 15
= 140
Identity Rule :
a³ - b³ = (a - b)³ + 3ab(a - b)
#MarkAsBrainliest
Given, x - 1/x = 5
Now, x³ - 1/x³
= (x - 1/x)³ + (3 × x × 1/x)(x - 1/x)
= 5³ + (3 × 5)
= 125 + 15
= 140
Identity Rule :
a³ - b³ = (a - b)³ + 3ab(a - b)
#MarkAsBrainliest
Answered by
0
x–1 = 5x
–1 = –4x
x= 1/4
therefore, the given aim is to find the value of 3x-1/3x.
p(x) = 3x–1/3x
p(1/4) = 3(1/4)–1/3(1/4)
= –1/4 ÷ 3/4
= –1/4 × 4/3
= –4/12
= –1/3
Please mark as brainliest answer.
–1 = –4x
x= 1/4
therefore, the given aim is to find the value of 3x-1/3x.
p(x) = 3x–1/3x
p(1/4) = 3(1/4)–1/3(1/4)
= –1/4 ÷ 3/4
= –1/4 × 4/3
= –4/12
= –1/3
Please mark as brainliest answer.
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