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Musya8 [376]
3 years ago
5

40 pts! solve the following equation by completing the square. 4x^2 - 16x + 8 = 0

Mathematics
2 answers:
sergij07 [2.7K]3 years ago
4 0

Answer:

B

Step-by-Step

sammy [17]3 years ago
3 0

Step-by-step explanation:

4 {x}^{2}  - 16x + 8 = 0 \\  {(2x)}^{2}  - 2.2x.4 +  {4}^{2}  - 8  = 0 \\  {(2x - 4)}^{2}  - 8 = 0 \\ 2x - 4 =   \sqrt{8}  \:  -  \sqrt{8}  \\ x = 2 +  \sqrt{2}  \\ x = 2 -  \sqrt{2}

..............................................

Plzz mark it as a brilliant answer

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