Question

If a ² +a+ 1 = 0, then the value of a5 + a4 + 1 is:

Answer 1

If a+1/a=4;find 1)a2+1/a2 2)a4+1/a4 3)a3+1/a3 II) If x+1/x=2; then show that; x2+1/x2=x3+1/x3=x4+1/x4 III) If 2x-3y=10 and xy=16; find the value of.Missing: â²

Answer 2

Step-by-step explanation:

a^3-1^3=(a-1)(a^2+1+a)

a^2+a+1=0

a^3-1^3=0

a^5+a^4+1

a^3*a^2+a^3*a+1

a^3(a^2+a)+1

a^3*0=0