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Oksanka
[162]
3 years ago
6
Add to each side x2 – 8x = 9 to complete the square
Mathematics
Answer
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2
answers:
ale4655
[162]
3 years ago
8
0
X=9, -1
Use the formula in order to create a new term. Solve for x by using this term to complete the square.
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PtichkaEL
[24]
3 years ago
5
0
For this case we have the following equation:
x2 - 8x = 9
By completing squares we have:
x2 - 8x + (-8/2) ^ 2 = 9 + (-8/2) ^ 2
Rewriting we have:
x2 - 8x + (-4) ^ 2 = 9 + (-4) ^ 2
x2 - 8x + 16 = 9 + 16
(x-4) ^ 2 = 25
Answer:
(x-4) ^ 2 = 25
Send
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