The level of water in a draining pool can be modeled with the function d (t)=12(.72), where d is the depth of water, measured in feet, and t is the amount of time it's been draining, measured in days. (a) For the first four days, is the pool draining on average more or less than 3 feet per day? ​

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form

is this part of a question or something

it’s supposed to be -4+45=41

step-by-step explanation: