8. Which of the following is equivalent to (2x + 4) / (2x^2 + 8x+ 8) for all values of x for which both expressions are defined?
(A) 1/(2x^2 + 6)
(B) 1/(9x + 2)
(C) 2 / (x+6)
(D) 1 / (x+4)
(E) 1 / (x+2)
Answer: E
Highlight 'Answer:' with your mouse, to see the answer choice.
Put your answers in comments section.
Highlight 'Answer:' with your mouse, to see the answer choice.
Put your answers in comments section.
Solution:
ReplyDelete(2x + 4) / (2x^2 + 8x+ 8)
= 2(x+2) / 2(x+2)^2
= 1/(x+2)