177k views
20 votes
Use synthetic or long division to divide x^3+ 5x^2+ x- 10 by x+ 2. What is the new
expression?

User Lefteris S
by
5.0k points

2 Answers

7 votes

Answer:

1x^2 + 7x + 4/x+2

Step-by-step explanation: x^3+ 5x^2+ x- 10 by x+ 2.

| 1 5 -10

2 | ---- 2 14

________________

1 7 4

X+2 = not a factorable --

1x^2 + 7x + 4/x+2

User Diego ZoracKy
by
4.9k points
5 votes

Answer:

x2+3x−5

Explanation:

Set up the synthetic division using the coefficients of the numerator and the root in the denominator. Divide using the rules for synthetic division.

User Ashwani K
by
4.6k points