I need help with this math question asap!!!

Question

express (x-3)(3x-7) as a trinomial

Answer 1

You should FOIL this

F - First

O - Outer

I - Inner

L - Last

F = (x)(3x) = 3x²

O = (x)(-7) = -7x

I = (-3)(3x) = -9x

L = (-3)(-7) = 21

Combine like terms: 3x²-16x+21

Answer 2

FOIL (First.Outer.Inner.Last) the terms

First: x*3x = 3x²

Outer: x*(-7) = -7x

Inner: (-3)*(3x) = -9x

Last: (-3)*(-7) = 21

Add the terms to express as trinomial :3x²-16x+21