How do you factor the trinomial c² -2cd -8d²?
2 Answers
May 19, 2018
Explanation:
"the factors of - 8 which sum to - 2 are - 4 and + 2"
rArrc^2-2cd-8d^2=(c-4d)(c+2d)
May 19, 2018
Explanation:
find two numbers that their product is -8 and their sum is -2
which they are -4 and +2
now because of c and d they both are squared
(c+2d)(c-4d)
to check your solution try to multiply them if your answer is correct you will get the original equation back