Answer:
![4,7,12,19,...](https://img.qammunity.org/2021/formulas/mathematics/middle-school/ddq0vq1er8g6cnwinvmwocdzv7ikl744mf.png)
Explanation:
The question in English is:
From the general term, calculate the first 4 terms.
(Consider that you must assign values to the variable n)
we have
![b_n=n^2+3](https://img.qammunity.org/2021/formulas/mathematics/middle-school/y06pc9sjovxwd80t4875g5vhalpdzz9fh6.png)
step 1
Calculate the first term
For n=1
![b_1=(1)^2+3=4](https://img.qammunity.org/2021/formulas/mathematics/middle-school/sc1gjogngs2tpmvu4s0szg6eg0rftdhds7.png)
step 2
Calculate the second term
For n=2
![b_2=(2)^2+3=7](https://img.qammunity.org/2021/formulas/mathematics/middle-school/kbueceieijki65xwpwwqcjjq54f0lnjftz.png)
step 3
Calculate the third term
For n=3
![b_3=(3)^2+3=12](https://img.qammunity.org/2021/formulas/mathematics/middle-school/orstf31z1nknerwgcd2djxe6ry1wowpp4c.png)
step 4
Calculate the fourth term
For n=4
![b_4=(4)^2+3=19](https://img.qammunity.org/2021/formulas/mathematics/middle-school/7eg6icq409m96g5vf1r4o0669e01eq6zyb.png)
therefore
the first 4 terms are
![4,7,12,19,...](https://img.qammunity.org/2021/formulas/mathematics/middle-school/ddq0vq1er8g6cnwinvmwocdzv7ikl744mf.png)