Marco says (x5)(x2) is equivalent to x7. Jaime says it’s equivalent to x10. Who is correct?
Answer
A
Marco, because (xa)(xb)= xa+b.
B
Jaime, because (xa)(xb) = xa•b.
C
Neither is correct, because (xa)(xb) = xa–b.
D
Neither is correct, because you cannot simplify (xa)(xb)