Question

can anyone solve this...​

Answer 1

Answer:

f(x)=x^2-x-2

x^2-2x+x-2=0

x(x-2)+1(x-2)=0

(x-2)(x+1)=0

x-2=0 or x+1=0

x=2 or x=-1

alpha=2 & beta=-1

=2^2+-1^2

=4+1

=5

Step-by-step explanation:

so Alpha square + beta square is equal to 5