Question

x³-18x=35 find the value of x​

Answer 1

Given equation, x

3

−18x−35=0

⟹x

3

+5x

2

−5x

2

+7x−25x−35=0⟹(x−5)(x

2

+5x+7)=0

Solving the quadratic equation, we have x=

2

−5±

3

i

∴ roots of the given equation are x=5,

2

−5±

3

i

Answer 2

refer to attatchment