Question

The number of Zeroes of x2−4x+4x2-4x+4 is​

Answer 1

Answer:

Given: polynomial x

2

−4x−21

To find the zeroes of the polynomial

Sol:

The zeroes of the polynomial can be found by equation the polynomial to zero and finding the values of the variable.

Hence, x

2

−4x−21=0

⟹x

2

−7x+3x−21=0

⟹x(x−7)+3(x−7)=0

⟹(x−7)(x+3)=0

Therefore the zeroes of the polynomial are −3,7

Answer 2

-3,7

I hope this answer is correct