Question

What is the value of the expression when a = 5 and b = 3? 4a^2 5b^3

a. 55
b. 74
c. 81
d. 145

Answer 1

`4a^25b^3\\\\subtitute\ the\ values\ of\ a=5\ and\ b=3\ to\ the\ expression:\\\\4(5^2)\cdot5(3^3)=4(25)\cdot5(27)=100\cdot135=\boxed{13,500}`