tentukan a jika ^a integral 1 (2x+1) dx = 4

integral 2x+1 = x^2+x+c

^a integral 1 (2x+1) dx = 4
[x^2+x](a,1) = 4
(a^2+a)-(1+1) = 4
a^2+a-6=0
(a+3)(a-2)=0
a=-3 V a=2