Polly and molly are writing letters to all of the athletes they love most. they have a list of 15 athletes, and polly has already written 2 letters. molly has written 4 letters. write an equation with the variable (l) to determine how many letters they have left to write. you do not need to solve this equation.

L = 15 -2-4

Step-by-step explanation:

Hi, to answer this question we have to subtract the letters that they have already written (2 and 4) to the total number of letters they have to write (15). That expression must be equal to the number of letters they left to write (L)

Mathematically speaking

L = 15 -2-4

Feel free to ask for more if needed or if you did not understand something.

- 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

answer: just subtact the units and then add the non negative : happy to

step-by-step explanation: