Question

Which of the following is a factor of x^2 + 19x + 84?
Choose one answer.
a. x + 6
b. x + 7
c. x + 2
d. None of the above

Answer 1

try to find 2 things that add to 19 and multiply to 84

Answer 2

its none of above...the ans wud be x-12 and x-7

Answer 3

@chronics could you explain that for him? because it's not good to leave them with an answer and no clue how to get it the next time

Answer 4

yeah...we get tw factors 12 and 7 such that 12*7=84 and 12+7=19...hence the answer

Answer 5

thanks. (:

Answer 6

another way to do this would be to graph it and find the x-intercepts