The top two answers are equivalent, while the bottom one is not. You would use distributive property in the parentheses. If both expressions are the same, they are equivalent
Answer:
6x-12
Step-by-step explanation:
I think this is the answer I am so sorry if Im wrong but 3*2x = 6x and then -4*3 = -12
So find the common denominator of all:30
12/30, 9/30 and 8/30 then add them 29/30
(x-7)(x+7).. this one is super easy, u need 2 numbers that are the same that when multiplied give you -49 but when added and subtracted cancel themselves.. if you multiply -7 times 7 you get -49 and if you add -7+7 they cancel out
Hope this helps