Answer:
7 a + 5 b − 4
10a^2b^2
Step-by-step explanation:
5 * 2 = 10
a * a^2 = a^(1+2) = a^3
b^2 * b = b^(2+1) = b^3
(10a^3b^3)/ab
a^3 : a = a^2
b^3 : b = b^2
