Asked by Ellie

(a) Expand and Simplify:
(1) 3x (x+3)
Answered by GPT 3.5
To expand and simplify the expression 3x(x+3), we will distribute the 3x to both terms inside the parentheses:

3x(x+3) = 3x * x + 3x * 3

Simplifying further:

= 3x^2 + 9x