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AURORKA [14]
3 years ago
13

What number must you add to complete the square?

Mathematics
2 answers:
KIM [24]3 years ago
8 0

The correct answer is D, 64

miv72 [106K]3 years ago
3 0
X² - 16x =23

16/2= 8; 8²=64       add 64 to both sides of the equation

x² - 16x + 64 = 23 + 64

the answer is D.
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