Question

Express the zeroes of the quadratic polynomial -x×x+4x-4 graphically

Answer 1

Hello!

-x^2+4x-4.....find zeros.

-x^2+4x-4 = x^2-4x+4

(Multiplying the whole eq by -)

=x^2-2x-2x+4

=x(x-2) -2(x-2)

=(x-2) (x-2)

x-2=0 , x-2=0

Therefore, x=2,2

Hope it helped!