Question

Find the value of x³-3x-4 if x=‐2​

Answer 1

Step-by-step explanation:

Given :---

■》 x³-3x-4 , if x=‐2

☆Solution☆

(-2)^3 - 3×(-2) - 4

(-2)^3 - 3×(-2) - 4 =》 -8 + 6 - 4

(-2)^3 - 3×(-2) - 4 =》 -8 + 6 - 4 =》 -12 + 6

(-2)^3 - 3×(-2) - 4 =》 -8 + 6 - 4 =》 -12 + 6 =》 -6. ( Answer).

● 100% Correct✌✌

Answer 2

Given:

The equation x³ - 3x - 4

The value of x is -2

To find:

The value of x³ - 3x - 4 if x = ‐ 2​

Solution:

The given equation is x³ - 3x - 4

Here,

x = -2

Substitute the value of x in the equation.

By substituting x = -2 in the given equation. We get,

x³ - 3x - 4 = (-2)³ - 3(-2) - 4

x³ - 3x - 4 = - 8 + 6 - 4

x³ - 3x - 4 = - 12 + 6  

x³ - 3x - 4 = - 6

Therefore,

The value of x³ - 3x - 4 if x = ‐ 2​ is - 6

Final answer:

The value of x³ - 3x - 4 if x = ‐ 2​ is - 6