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

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

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step-by-step explanation:

where's the diagram?

step-by-step explanation:

b.

step-by-step explanation:

i just know