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4x² - 12x + 9 = 5

→ 4x² - 12x + 4 = 0

→ x² - 3x + 1 = 0

→ x = (-(-3) ±√((-3)² - 4×1×1))/(2×1)

→ x = (3 ±√5)/2

→ x = (3 + √5)/2 or x = (3 - √5)/2

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โˆ™ 2016-10-25 07:03:20
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Q: What are the solutions to 4xยฒ - 12x plus 9 equals 5?
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