Answer:
it's true
Step-by-step explanation:
when you expand out brackets, you multiply everything inside the brackets (a, and b) by what's outside the brackets (3). so it's gonna be (3*a)+(3*b) and that's 3a+3b.
Answer:
3a+3b
Step-by-step explanation:
When a question like this has to undefined variables in the brackets, you must distribute the three and multiply each value in the brackets by 3.
Thus, 3a+3b
