Question
Can you help me combine the expression into a single fraction?
(t^2-1)/(t^2+7t+10) - (2t+4)/(t^2-t-6)
and
(3a-1)/(2a+6) - 7a/(a^2+7a+12)
Thanks!
(t^2-1)/(t^2+7t+10) - (2t+4)/(t^2-t-6)
and
(3a-1)/(2a+6) - 7a/(a^2+7a+12)
Thanks!
Answers
helper
(t^2-1)/(t^2+7t+10) - (2t+4)/(t^2-t-6)
factor the denominators first
(t^2-1)/(t+2)t+5) - (2t+4)/(t-3)(t+2)
LCD is (t+2)(t+5)(t-3)
Now, can you combine over the LCD?
factor the denominators first
(t^2-1)/(t+2)t+5) - (2t+4)/(t-3)(t+2)
LCD is (t+2)(t+5)(t-3)
Now, can you combine over the LCD?