Question

simplify what is written in black and the last outer power is c^2-cb-b^2​

Answer 1

x^a/x^(-b) = x^(a+b)

then we get

(x^(a+b))^(a²-ab+b²)=x^((a+b)(a²-ab+b²))

(a+b)(a²-ab+b²)=a³-b³

so finally we get

x^(a³-b³)

similarlly we get x^(b³-c³),x^(c³-a³) for other two

on multiplying them we get

x^((a³-b³)+(b³-c³)+(c³-a³)) = x^(a³-a³+b³-b³+c³-c³)=x°=1

so final answer is 1