Question

Verify whether if x = (+or- 1) is the zero of polynomial for p(x)=x^2-1

Answer 1

Hey....

given zeros are :- x=1 or x=1 ..

At first we will take x=1

Now p(x)=x^2-1
0=(1)^2-1
0 =1-1
0 =0
Now we will take x=(-1)
p(x)=(-1)^2-1
0=1-1
0=0…
Here ,both are zeroes of this polynomial..
x=1 or x=-1....

Hope this will help u...

Answer 2

hey!!!!

given x = 1 or -1

first, p(1) = 1² - 1

= 1 - 1

= 0

yes, 1 is the zero of polynomial.

now, p(-1) = (-1)² - 1

= 1 - 1

= 0

yes, -1 is also the zero of polynomial.

hence, both 1 and -1 are the zero of polynomial here.

cheers!!!