Multiple Choice Question (MCQ)
Question: What is the formula for (a-b)2?
A.
a<sup>2</sup>- 2ab + b<sup>2</sup>
B.
a<sup>2</sup> + 2ab + b<sup>2</sup>
C.
a<sup>2</sup> - 2ab - b<sup>2</sup>
D.
(-a<sup>2</sup> - 2ab - b<sup>2</sup>)
Correct Answer: a<sup>2</sup>- 2ab + b<sup>2</sup>