Question

Find the zeroes of the quadratic polynomial x^2-2x-8

Answer 1

Answer:

The zeroes of the polynomial p(x) is 4 and -2

Step-by-step explanation:

Let p(x) = x^2-2x-8

= x^2-(4-2)x-8

= x^2- 4x+2x-8

= x(x-4)+2(x-4)

= (x-4)(x+2)

Therefore the value of p(x) is zero when,

Either, x-4=0 or. x+2=0

x=4. x=-2

Answer 2

Answer:-
x+2=0 OR x-4=0
Therefore x=4, x=-2
Hope it helps!!