Julie drank 4 5 liter of water Monday before going jogging. She drank 2 3 liter of water after her jog. How much water did Julie
1 answer:
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Answer:
x = 4 ±
Step-by-step explanation:
To complete the square
add (half the coefficient of the x- term)² to both sides
x² + 2(- 4)x + 16 + 5 = 16
(x - 4)² + 5 = 16 ( subtract 5 from both sides )
(x - 4)² = 11 ( take the square root of both sides )
x - 4 = ± ( add 4 to both sides )
x = 4 ± ← exact values