Answer:
x = ± 8i/11
Step-by-step explanation:
121x2+64=0
121x^2 = -64
x^2 = -64/121
x = +/- √(-64/121)
x = +/- 8i/11
f(x) = x³ – 2x² – x + 2
0 = x3 – 2x2 – x + 2
(x-2)(x-1)(x+1)=0
x1=-1
x2=1
x3=2
46
6*5
-2*-8
30+16=46
