Suppose that the polynomial \(f\left(x\right)=2x^5-9x^3+2x^2+9x-3\) has 5 solutions \(x_1;x_2;x_3;x_4;x_5\). The other polynomial \(K\left(x\right)=x^2-4\). Find the value of \(P=K\left(X_1\right)\times K\left(X_2\right)\times K\left(X_3\right)\times K\left(X_4\right)\times K\left(X_5\right)\)