For Exercises $1-3,$ consider P$($x$)=2$x$^(4)-7$x$^(3)+29$x$-30.$ Given that $-2$ is a zero of P$,$ factor P$($x$)$ into a linear factor multiplied by a cubic factor. Given that $2+$i is a zero of P$,$ what must be another zero of P $?$ Factor P$($x$)$ into linear factors.