Question

2. If x+1/x=-1, find the value of x^3-1
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Answer 1

This is your required answer ..hope it helps

Answer 2

Step-by-step explanation:

$\large{ \bold {\underline {\underline\pink{\bf{req} \green{uir} \red{ed} \: \orange{ans} \blue{wer}}}}}$

$\frac{x + 1}{x} = - 1 \\ \\ x + 1 = - x \\ \\ x = \frac{ - 1}{2}$

${x}^{3} - 1 \\ \\ ( { \frac{ - 1}{2}})^{3} - 1 \\ \\ \frac{ - 1}{8} - 1 \\ \\ \frac{ - 1 - 8}{8} \\ \\ \bold{\frac{ - 9}{8} }$