Ralph buys antique vase for $400 and sells the vase for $600. how does he enter the profit or loss in his account book?

$200

Step-by-step explanation:

Since he sold the vase at a higher price than the one he bought it at, he made a profit.

To find the profit, subtract how much he paid for it from the amount he sold it at:

600 - 400

= 200

So, he will enter the profit as $200 in his account book

- 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

b). 4320 have a nice day