Question

7. Find the zeroes of the quadratic polynomials
x 2 - 2 x - 8

Answer 1

Answer:

4, -2

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  or x = 4