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Solving a Quadratic Equation by Factorization Method

Given that 0....

Question

Given that $0.8$ is one root of the equation, $x^{3} - 0.6 x^{2} - 1.84 x + 1.344 = 0$ . The other roots of this equation will be

1.1

and

- 1.4

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- 1.2

and

1.4

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1.2

and

- 1.4

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- 1.1

and

1.4

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Solution

The correct option is A $1.1$ and $- 1.4$
Given equation in $x^{3} - 0.6 x^{2} - 1.84 x + 1.344 = 0$
$∵$ Only option (c) is satisfying given equation so it is the right answer..

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