Help me plz

Can someone answer it, and plot it, for 20 points and brainliest answer? p.s. they're the same ! : )

Rewrite the polynomial -9x5 + 36x4 + 189x3 in factored form.

3a + 5b - 7 = 0 a - 2b - 4 = 0 solve the system by the elimination method. check your work {(96/11, -5/11)} {(34/11, -5/11)} {(32/33, 5/11)}