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The polynomial (x - 2) is a factor of the polynomial 5x2 - 6x + 4.A.TrueB.FalseSUBMITarrow_backPREVIOUS

Question

The polynomial (x - 2) is a factor of the polynomial 5x^2 - 6x + 4.

A. True
B. False

SUBMIT
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PREVIOUS

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Solution

To determine whether (x2) (x - 2) is a factor of the polynomial 5x26x+4 5x^2 - 6x + 4 , we can use the Factor Theorem, which states that (xc) (x - c) is a factor of a polynomial f(x) f(x) if and only if f(c)=0 f(c) = 0 .

Step 1: Define the polynomial

Let f(x)=5x26x+4 f(x) = 5x^2 - 6x + 4 .

Step 2: Substitute x=2 x = 2

We need to calculate f(2) f(2) : f(2)=5(2)26(2)+4 f(2) = 5(2)^2 - 6(2) + 4

Step 3: Perform the calculation

Calculating step-by-step:

  1. Calculate (2)2=4 (2)^2 = 4 , then 5(4)=20 5(4) = 20
  2. Calculate 6(2)=12 -6(2) = -12
  3. Now adding up: f(2)=2012+4=12 f(2) = 20 - 12 + 4 = 12

Step 4: Verify and summarize

Since f(2)=12 f(2) = 12 , which is not equal to 0, it follows that (x2) (x - 2) is not a factor of the polynomial 5x26x+4 5x^2 - 6x + 4 .

Final Answer

B. False

This problem has been solved

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