Answer: The lowest common denominator of the given fractions is
![(p+2)(p+3)(p+5).](https://img.qammunity.org/2019/formulas/mathematics/middle-school/ck2i7d1clfd9jcu4cfnxxv04xsbkszryzz.png)
Step-by-step explanation: We are given to find the lowest common denominator of the following fractions :
![F_1=(p+3)/(p^2+7p+10),\\\\\\F_2=(p+5)/(p^2+5p+6).](https://img.qammunity.org/2019/formulas/mathematics/middle-school/8n3zz3epylhz4eccngk26sgmh2wdrc3nsc.png)
To find the lowest common denominator, we need to factorize the denominators of both the fractions and take the L.C.M. of them.
We have
![F_1=(p+3)/(p^2+7p+10)=(p+3)/(p^2+5p+2p+10)=(p+3)/((p+2)(p+5)),\\\\\\F_2=(p+5)/(p^2+5p+6)=(p+5)/(p^2+3p+2p+6)=(p+5)/((p+2)(p+3)).](https://img.qammunity.org/2019/formulas/mathematics/middle-school/49f8c6i8knctt9kdbw20k59sv11wsrt0bp.png)
Now, the L.C.M. of the denominators is given by
![L.C.M.\{(p+2)(p+5),(p+2)(p+3)\}=(p+2)(p+3)(p+5).](https://img.qammunity.org/2019/formulas/mathematics/middle-school/rnax6h0lf63ka63swiwk8qvlpe4nj9zy65.png)
Thus, the lowest common denominator of the given fractions is
![(p+2)(p+3)(p+5).](https://img.qammunity.org/2019/formulas/mathematics/middle-school/ck2i7d1clfd9jcu4cfnxxv04xsbkszryzz.png)