Answer:
25x
Step-by-step explanation:
You would need to solve using PEMDAS or order of operations.
First, start with the parentheses.
2x + 3 = 5x.
Next, replace the equation we just did with the sum.
5x^2
Now, this symbol, ^, does not mean multiplying. You can, simply, think of it as multiplying, in this case, 5x by 5x. The answer would be 25x.
(sorry if im wrong)
Answer:
4x^2+12x+9
Step-by-step explanation:
Notice that this expression has the following special form:
(a+b) (a+b) = (a+b)^2
(a+b)^2 = a^2 + 2ab +b^2
Use the following pattern we get:
(2x + 3) ^2
= (2x)^2 + 2(2x)(3) +3^2
=4x^2 + 12x + 9
