I was wondering if someone can check my work on these 2 problems about integrals.

A) the integrals from -2 to 3 (25)^2x+1 dx
the answer i got was [25^(7) / 2ln(25)] / [25^(-1) /2ln(25)]

B) the ingtegral 7x 6^(1-2x^2) dx
the answer i got was (-7/4) [6^1-x^2] / [4ln(6)] + C

thanks for the help