Question

plz plz pl Zplz plz answer​

Answer 1

Step-by-step explanation:

x - a = 0

x = a

So , (a)³ - 3(a)²a + 2a²(a) + b = 0

a³ - 3a³ + 2a³ + b = 0

3a³ - 3a³ + b = 0

b = 0

x³ + 1/x³ = 110

(x + 1/x)³ = x³ + 1/x³ + 3(x + 1/x)

(x + 1/x)³ - 3(x + 1/x) = 110

Let x + 1/x = Z

then , Z³ - 3Z = 110

when Z = 5

then , 5³ - 3(5)

125 - 15 = 110

So , Z = 5 is Satisfying the equation.

So , x + 1/x = 5