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allochka39001 [22]
3 years ago
6

What is the solution set of the equation 6x^2 - 18x - 18 =6?

Mathematics
1 answer:
dybincka [34]3 years ago
3 0

Answer:

The solution set is {4, -1}

Step-by-step explanation:

6x²- 18x -18 = 6

6x²- 18x -18 - 6 = 0

6x²- 18x -24 = 0

6(x² - 3x - 4) = 0

6(x - 4)(x + 1) = 0

6 = 0 not true

x - 4 = 0 ;   x + 1 = 0

x = 4           x = - 1

The solution set is {4, -1}

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