<span>(3x-4)+(x+3)^2
= 3x - 4 + x^2 + 6x + 9 .........(expand using (a+b)^2 = a^2 + 2ab + b^2)
= x^2 + 9x + 5 ..........(combine like terms and simplify)
hope that helps</span>
Answer:
Step-by-step explanation:
The word "more" in this context means we want to find the difference between the number Daria has and the number Julia has. It is an "additive" comparison.
____
You need to be a little careful with this. You will often see wording such as "... <em>times more</em> than ...", in which case it is a multiplicative comparison. (I would prefer the multiplicative comparison wording to be "... times as many as ...", so that "more" is reserved for additive comparisons. Alas, not in this lifetime.)
A binomial squared is written like

So, we have 
So, we want to complete the square 
We can add and subtract 9 to write
