50x3 – 20x + 8x ─ 21x3 – 3x + 15x ─29 x3

0

General Formulas and Concepts:

Algebra I

Step-by-step explanation:

Step 1: Define

50x³ -20x + 8x - 21x³ - 3x + 15x - 29x³

Step 2: Simplify

Step-by-step explanation:

We are given the expression:

We want to simplify it, so we must combine the like terms. For this equation, the like terms are terms with x³ or x.

First, combine all the x³ terms.

Next, combine all the remaining terms, because they are all terms with an x.

The expression is equal to 0

4

step-by-step explanation:

change of stock price/initial stock price on friday * total stock value = change of stock value

0.89/73.73 *x = 42.72

x=3539.04 = total stock value at initial stock price on friday .

total stock value at initial stock price on friday/ initial stock price on friday = number of shares

3539.04/73.73 = 48 shares

they own 48 shares of this stock