Question

Y

(2)を教えてください🙏

(2) f'(x)=6x+4
; f(2)=15
t(x) = S(6x + 4) dx
tit" cate
?
3x+4x+Cなるのですか?
2
42
t (2)=15 3 x 2 + 4x2 +C = 15
3 x 4 + 8 + C = 15
120
C = 15-8-12 = -5
t(x) = 3x² + 4x-5