Simplify (7t^2 + 9) + (6t^2 + 8).
A. t^2 + 1
B. 13t^2 + 17
C. 13t^4 + 17
D. 42t^2 + 72
The simplified expression is:
(7t^2 + 9) + (6t^2 + 8)
= 7t^2 + 6t^2 + 9 + 8
= 13t^2 + 17
Therefore, the simplified expression is:
B. 13t^2 + 17