d+7/d^2+49= / (d+7) (d+7)*I got the bottom but I don't know what to put at the top...please help!!!
answered below
To simplify the expression, you need to find a value to put at the top.
To do this, you can divide the numerator by the denominator. In this case, the numerator is "d+7" and the denominator is "(d+7)(d+7)".
So, divide "d+7" by "(d+7)(d+7)":
(d+7) / (d+7)(d+7)
The "(d+7)" in the numerator and the denominator cancels out, leaving just 1 in the numerator:
1 / (d+7)
Therefore, the simplified expression is 1 / (d+7).