Question

y = x3– 4x : Its number of zeroes and its nature.

Answer 1

Answer:

+ 2 or - 2, The nature of the roots is real and unequal.

Step-by-step explanation:

x³ - 4x = 0

x ( x² - 4 ) = 0

x² - 4 = 0

x² = 4

x = + root 4 or - root 4

x = + 2 or - 2

The nature of the roots is real and unequal.

To find nature of the roots you need to use the formula

b² - 4ac.

Hope this helps you.