Question

find the zero of the polynomial x square -2x-8=0​

Answer 1

Answer:

Step-by-step explanation:

x^{2} -2x-8=0

x^{2} -4x+2x-8=0

x(x-4)+2(x-4)=0

(x+2)(x-4)=0

x+2=0  or  x-4=0

x=-2,4