Answer:
x²-18x+45
Explanation:
(x-15)(x-3)
Product of the first terms is x² [x times x] F
Product of the outer term is -3x [x times -3] O
Product of the inner term is -15x [-15 times x] I
Product of the last term is 45 [-15 x -3] L
Combine like terms and you'll get x²-18x+45