integral of x^3+65/X^+7x+12 dx

when i solved i got x^2/2-7x+64ln(x+4)-111ln(x+3)+c however this isn't the right answer....what have i done wrong??

It looks like you may have integrated every term wrong, but I can't be sure. Please indicate the numerator and denominator of the fraction with parentheses, and tell us what exponent is supposed to follow the X^