Question

plz solve 4 and 6 plz plz plz

Answer 1

${x} - \frac{1}{x} = 4 \\ {x}^{3} - \frac{1}{ {x}^{3} } = {(x - \frac{1}{x}) }^{3} + 3(x - \frac{1}{x} ) \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = {51}^{3} + 51 \times 3 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: = 1332804$
similarly use this for question 6


please follow me

Answer 2

no.4 and 6 ka solution