Question

How to solve this? Please help me urgently

Answer 1

Given that: t²-1=0

t²=1

t=1

Step-by-step explanation:

xt⁴+at³+yt²+bt+z=0

x(1)⁴+a(1)³+y(1)²+b(1)+z=0

x+a+y+b+z=0

(x+y+z)+(a+b)=0

hence proved