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Dimas [21]
2 years ago
6

Find all roots: x^3-7x^2-12x = 0

Mathematics
1 answer:
Pepsi [2]2 years ago
5 0

Answer:

The roots are  0, 3 and 4.

Step-by-step explanation:

x^3-7x^2-12x = 0   Take out x:

x(x^2 - 7x - 12) = 0  Factor the expression in the brackets:

x(x - 3)(x - 4) = 0

x = 0 or x - 3 = 0 or x - 4 = 0, so

The roots are  0, 3 and 4.

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