Bài 12: Tam thức bậc hai là đa thức có dạng f(x) = ax2+ b x + C với a, b, c là hằng, a  0. Hãy xác định các hệ số a, b biết f(1) = 2; f(3) = 8

step-by-step explanation:

the multiplicative inverse of a fraction a/b is b/a. for the multiplicative inverse of a real number, divide 1 by the number. for example, the reciprocal of 5 is one fifth 1/5 or 0.2, and the reciprocal of 0.25 is 1 divided by 0.25, or 4.

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or  

the height of the surface increases from the center out to the sides of the road

it is c!