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3 years ago

- f(x) = 3x3 – 21×² – 54xZeroMultiplicityEffect

Mathematics

1 answer:

xenn [34]3 years ago

3 0

Answer:

x = 9 or x = 0 or x = -2

Step-by-step explanation:

Solve for x:

3 x^3 - 21 x^2 - 54 x = 0

The left hand side factors into a product with four terms:

3 x (x - 9) (x + 2) = 0

Divide both sides by 3:

x (x - 9) (x + 2) = 0

Split into three equations:

x - 9 = 0 or x = 0 or x + 2 = 0

Add 9 to both sides:

x = 9 or x = 0 or x + 2 = 0

Subtract 2 from both sides:

Answer: x = 9 or x = 0 or x = -2

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- f(x) = 3x3 – 21×² – 54xZeroMultiplicityEffect​

- f(x) = 3x3 – 21×² – 54xZeroMultiplicityEffect