Browse · MATH Print → jmc algebra junior Problem Define the operation ⋆ by a⋆b=(a+b)b. What is (3⋆5)−(5⋆3)? Solution — click to reveal Since 3⋆5=(3+5)5=8⋅5=40 and 5⋆3=(5+3)3=8⋅3=24, we have 3⋆5−5⋆3=40−24=16. Final answer 16 ← Previous problem Next problem →