1) x^2 + 8x + 16 = (x+4)^2
Answer: C. 16
2) x^2 + 4x + 4 = (x+2)^2
Answer: B. 4
Answer:
Step-by-step explanation:
when x=4
area=4²+14×4+c=16+56+c=72+c
8²=64
9²=81
72+c=81
c=81-72=9
area=81 units²
length of each side=√81=9 units
the last option is correct
Answer:
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Step-by-step explanation:
