Practice problem
Simplify (a+3)(3+a)(a + 3)(3 + a)(a+3)(3+a) using the distributive property.
a2+6a^2 + 6a2+6
2a+62a + 62a+6
a2+6a+6a^2 + 6a + 6a2+6a+6
a2+6a+9a^2 + 6a + 9a2+6a+9
Type a concept, like “slope” or “photosynthesis”.