A square has sides of length s+3. What is the area of the square?

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Answer 1 · 2016-12-01T02:22:52

#A = s^2 + 6s + 9#

The formula for the Area of a square is:

#A = l^2# or #A = l*l# Where #A# is the area of the square and #l# is the length of the side of a square.

For this problem we can substitute #s + 3# for #l# and solve:

#A = (s + 3)*(s + 3)#

#A = (s*s) + (3*s) + (3*s) + (3*3)#

#A = s^2 + (3 + 3)*s + 9#

#A = s^2 + 6s + 9#