Which two operations are needed to write the expression that represents “four times the difference of a number and three”? multiplication and subtraction division and subtraction multiplication and addition division and additio

multiplication and subtraction

Step-by-step explanation:

4 * x - 3

“four times(multiplication) the difference(subtraction) of a number and three”

4(number - 3)

Your answer is the 1st option, multiplication and subtraction

- 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