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What are the roots of the quadratic equation: x2 + 3x - 154 = 0

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What are the roots of the quadratic equation: x2 + 3x - 154 = 0


1). 11, 14
2). 11, -14
3). 14, -11
4). 14, -22


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Answered by on | Votes 4 |

x2 + 3x - 154 = 0

⇒ x2 + 14x – 11x – 154 = 0

⇒ x(x + 14) – 11(x + 14) = 0

⇒ (x + 14)(x – 11) = 0

Then, x = -14 or x = +11.

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