Solve by completing the square x^2-6x-4=0
1 answer:
Answer:
x = 3 ± 
Step-by-step explanation:
x² - 6x - 4 = 0 ( add 4 to both sides )
x² - 6x = 4
To complete the square
add ( half the coefficient of the x- term)² to both sides
x² + 2(- 3)x + 9 = 4 + 9
(x - 3)² = 13 ( take square root of both sides )
x - 3 = ±
( add 3 to both sides )
x = 3 ± 
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Answer:
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Step-by-step explanation:
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Answer:
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Step-by-step explanation:
By using Pythagorean Theorem,
C^2= (10)^2+ (9)^2
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Hope it helps!