3 years ago

Solve x2 + 8x + 8 = 0 by completing the square. Which equation is used in the process?

Mathematics

2 answers:

garri49 [273]3 years ago

6 0

x² + 8x + 8 = 0

x² + 8x + 8 + 8 = 0 + 8

x² + 8x + 16 = 8

x² + 4x + 4x + 16 = 8

x(x) + x(4) + 4(x) + 4(4) = 8

x(x + 4) + 4(x + 4) = 8

(x + 4)(x + 4) = 8

(x + 4)² = 8

Dominik [7]3 years ago

5 0

Step-by-step explanation:

the answer is -1.18 or - 13.65

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