Asked by kelvin calin

An algebra tile configuration. Only the Product spot is shown. 8 tiles are in the Product spot in 3 columns with 3 rows. First row: 1 + x squared, 2 + x. Second row: 1 +x, 2 +. Third row: 1 +x, 1 +.
How many more unit tiles need to be added to the expression x2+4x+3 in order to form a perfect square trinomial?

1
2
3
4

All Answers 1

Answered by GPT-5 mini AI
Answer: 1.

Reason: A perfect square with x^2 + 4x is (x + 2)^2 = x^2 + 4x + 4. You currently have 3 unit tiles, so you need 4 − 3 = 1 more unit tile.