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Solve for . Enter the solutions from least to greatest.
6x²6x - 72 = 0

User Karmacon
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1 Answer

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Explanation:

6x² - 6x - 72 = 0

Using. Completing the squares method.

6x²/6 - 6x/6 = 72/6

x² - x = 12

Take the coefficient of x, halve and square and add to both sides.

(1/2)² = 1/4

( x + 1/4)² = 12 + 1/4

(x + 1/4)² = 48 + 1 /4

(x + 1/4)² = 49/4

x + 1/2 = 7/2

x = 7/2 ±1/2

x = 4 or x = 3

User Djaszczurowski
by
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