What pattern describes how the decimal point move when you divide a number by 10? in which direction

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a. the profit when the unit price is equal to 0b. the unit price(s) when the profit is equal to 0c. the profit when the unit price is greatestd. the unit price(s) when profit is greatest

Pls never taught i’m really confused and i rlly need

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