Question

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Answer 1

Given that , cube of x is 25 times of x and x ≠ 0 and x ≠ -5

So,

According to the question,

===> x³ = 25x

===> x² = 25

===> x = 5, -5

x = -5 is neglected because It is given in the question that x ≠ -5

So,

x = 5

Option - (b)