Question 1037146: 1. What are the roots of the equation (𝑥 − 4)2(𝑥 + 2) = (𝑥 + 2)2(𝑥 − 4)
A. 4 and −2 only C. 2 and −4 only
B. 1 only D. 1, −2, and 4 only
2. If 𝑓(𝑥) = 𝑥2 + 𝑥 + 1, then 𝑓(𝑥) − 𝑓(𝑥 − 1) is
A. 0 B. 𝑥 C. 2𝑥 D. 3
3. Which of the following is NOT an identity?
A. (𝑥 − 1)2 = 𝑥2 − 2𝑥 − 1 B. (𝑥 + 3)(2𝑥 − 2) = 2(𝑥2 + 2𝑥 − 3)
C. 𝑥2 − (𝑥 − 1)2 = 2𝑥 − 1 D. 2(𝑥 − 1) + 3(𝑥 + 1) = 5𝑥 + 4
Answer by ikleyn(52878)   (Show Source):
You can put this solution on YOUR website! .
1. What are the roots of the equation (x-4)^2*(x+2) = (x+2)^2*(x-4)
A. 4 and -2 only
B. 1 only
C. 2 and -4 only
D. 1, -2, and 4 only
Why didn't you try and check yourself all these options?
Also see how I re-wrote yours formula to make it readable.
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