78.7k views
2 votes
I know to use synthetic division to see if it is a factor or not but I'm not sure what it means by ordered pair ​

I know to use synthetic division to see if it is a factor or not but I'm not sure-example-1

1 Answer

3 votes

Ordered pair: (3x³+10x²+x-6, x-1); Answer: No

Ordered pair: (4x² + 13x + 10, x+2); Answer: Yes

Ordered pair: (3x³+10x²+x-6, x+3); Answer: Yes

1. (3x³+10x²+x-6, x-1)

Using the Remainder Theorem, we can determine whether x-1 is a factor of 3x³+10x²+x-6. The theorem states that if f(a) = 0 for some value a, then (x-a) is a factor of f(x).

Step 1: Evaluate f(1):

f(1) = 3(1)³ + 10(1)² + 1(1) - 6 = 16

Since f(1) ≠ 0, then x-1 is not a factor of 3x³+10x²+x-6.

Therefore, the ordered pair is (3x³+10x²+x-6, x-1) and the answer is No.

2. (4x² + 13x + 10, x+2)

Step 1: Evaluate f(-2):

f(-2) = 4(-2)² + 13(-2) + 10 = 0

Since f(-2) = 0, then x+2 is a factor of 4x² + 13x + 10.

Therefore, the ordered pair is (4x² + 13x + 10, x+2) and the answer is Yes.

3. (3x³+10x²+x-6, x+3)

Step 1: Evaluate f(-3):

f(-3) = 3(-3)³ + 10(-3)² + (-3) - 6 = 0

Since f(-3) = 0, then x+3 is a factor of 3x³+10x²+x-6.

Therefore, the ordered pair is (3x³+10x²+x-6, x+3) and the answer is Yes.

User RuMoR
by
8.4k points