Adeep sea diver must move up or down in the water in short steps in order to keep from getting a physical condition called the “bends”. supposed a diver moves down from the surface in five steps of 21 feet each. represent his total movements as a product of signed numbers and find the product

Downward movement of each step = 21 feet

Number of steps the diver moved down = 5

Total movement = 5 x 21 feet

answer

point o.

step-by-step explanation:

- 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