Multiple Choice
Which algebraic formula represents $(a - b)^2 + 4ab$?
What is the value of $a^2 + b^2$ in terms of $(a + b)^2$ and $(a - b)^2$?
Which of the following is the correct expression for $(a - b)^2$?
If $ab = \frac{(a+b)^2 - (a-b)^2}{4}$, what is $ab$ when $a = 5$ and $b = 3$?
What is the expanded form of $(a + b)^2$?
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