MM
Mashaal Masha
Feb 25, 2024
Which of the following expressions is equivalent to the sum of $(r^{3}+5r^{2}+7)$ and $(r^{2}+8r+12)$ ?
Difficulty: Easy
A:
$r^{5}+13r^{3}+19$
B:
$2r^{3}+13r^{2}+19$
C:
$r^{3}+5r^{2}+7r+12$
D:
$r^{3}+6r^{2}+8r+19$
ID: 65db796c94fbe38fff4e2dce