Let ♥ be the operation defined by a ♥ b = 2b – 2a. Find 16 ♥ (8 ♥ 4).
Let ~ be the operation defined by a ~ b = 9-b/a+ab . Find –1 ~ 9
Let ♦ be the operation defined by a ♦ b = 5a – 7b. Find (2 ♦ 6) ♦7.
My son's teacher loves these types of problems and he just can't figure them out.
I would like to know if anyone can give just give me a place to start in helping him. I don't really understand them myself and he dosen't seem to be able to explain them to me. These are questions from already completed homework, so I have the answers but can't figure out the work.
Let ~ be the operation defined by a ~ b = 9-b/a+ab . Find –1 ~ 9
Let ♦ be the operation defined by a ♦ b = 5a – 7b. Find (2 ♦ 6) ♦7.
My son's teacher loves these types of problems and he just can't figure them out.
I would like to know if anyone can give just give me a place to start in helping him. I don't really understand them myself and he dosen't seem to be able to explain them to me. These are questions from already completed homework, so I have the answers but can't figure out the work.