Practice problem
What does a perfect square trinomial look like before being factored?
(a+b)2(a+b)^2(a+b)2
(a−b)2(a-b)^2(a−b)2
a2+2ab+b2a^2 + 2ab+b^2a2+2ab+b2
a2+b2a^2 + b^2a2+b2
Type a concept, like “slope” or “photosynthesis”.