(1/4a+1/8a)*a^2/2 при а=-7,2

Question

(1/4a+1/8a)*a^2/2 при а=-7,2

Answer 1

(0.25*a+0.125*a)*a^(2/2)
0.375*a*a^1
0.375*a*a
0.375*a^2
0.375*(-7.2)^2
0.375*51.84=19.44