Question

draw the graph of the polynomial x³ - 4x ,find the zeroes and justify your answer​

Answer 1

Answer:

All the zeros of the given polynomial are 0 , 2 , -2

Step-by-step explanation:

For the details note the graph

Answer 2

Answer:

The roots are real and distinct & the roots are 2 , 0 , - 2

Step-by-step explanation:

p(x) =0

x^3 - 4x = 0

p (x) = 0

DESCRIMINANT

= b^2 - 4ac. Here, a=1 ; b=0 ; c=-4

= 0^2 - 4(1)(-4)

= 0+16

= 16 > 0

#the roots are real and distinct

VERIFICATION MENTIONED IN THE PICTURE

2,0,-2 are the roots of the given equation

GRAPH MENTIONED IN THE 2nd PICTURE

scale : on x-axis 1 cm = 1 unit

on y-axis 1 cm = 1 unit