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IrinaVladis [17]
4 years ago
9

 ASAP need today

Mathematics
2 answers:
r-ruslan [8.4K]4 years ago
8 0

The correct answer is x^2 + 18x + 81 = 125

Because completing the square requires adding (b/2)^2 to both sides, and in our cause b is 18, so (18/2)^2 = 81

Add 81 to both sides and you have x^2 + 18x + 81 = 125.

Answer is correct; I took the test.

aivan3 [116]4 years ago
7 0
The answer would be 
x² + 18x + 81 = 44 + 81

To complete the square, we look at the value of b (the coefficient of x).  We take half of it, then square it; this is the number that gets added to both sides.

18/2 = 9; 9²=81

Therefore we add 81 to both sides.
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