Evaluate the expression 10ba2if b6 and a2.?

To evaluate the expression ( 10ba^2 \cdot b^6 \cdot a^2 ), first combine the like terms. The ( b ) terms can be combined as ( b^{1+6} = b^7 ), and the ( a ) terms as ( a^{2+2} = a^4 ). Thus, the expression simplifies to ( 10b^7a^4 ).