Hàm số y=3x^2+10x+20/(x^2-2x+3). Gọi giá trị lớn nhất là M giá trị nhỏ nhất là m. Tìm M và m

Can someone me with my hwplz(only the circled ones)

Amanager recorded the number of bicycles sold by his company each quarter. his projected sales after t years is given by the expression below. which of the following statements best describes the expression? a. the initial sales of 575 bicycles increases at the rate of 4% over 4 quarters. b. the initial sales of 575 bicycles increases at the rate of 18% over 4 years. c. the initial sales of 575 bicycles increases at the rate of 4% over t quarters. d. the initial sales of 575 bicycles increases at the rate of 18% over t years.

Could somebody me with this radical simplification?