20.6k views
2 votes
25) When (x + 1)2 is divided by x - 2, the quotient is 16 and the remainder is x - 3. Find the possible values of x.​

User Mike Lunn
by
8.3k points

1 Answer

5 votes

Answer:

x = 3 or x = 12

Explanation:

You want the possible values of x that make it true that ...

(x +1)²/(x -2) = 16 +(x -3)/(x -2)

Division expression

The given division expression can be written in terms of quotient and remainder as ...

p/q = a +r/q ⇒ p = aq +r

Application

Here, this means ...

(x +1)² = 16(x -2) +(x -3)

x² +2x +1 = 16x -32 +x -3

x² -15x = -36

x² -15x +56.25 = 20.25 . . . . . complete the square

(x -7.5)² = 4.5²

x = 7.5 ± 4.5 . . . . . . . . . . . . . take the square root, add 7.5

x = 3 or 12

__

Additional comment

The given quotient-remainder equation has a vertical asymptote at x = 2. When we write it as f(x) = 0, the graph of f(x) is symmetrical about the point (2, -11).

25) When (x + 1)2 is divided by x - 2, the quotient is 16 and the remainder is x - 3. Find-example-1
User AmazingDreams
by
8.0k points