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Roots of a Quadratic Equation

State true or...

Question

State true or false:
If $y^{2} + 3 y - 18 = 0$ , then $y = - 6$ or $- 3$ .

A

True

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B

False

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Solution

The correct option is B False
Given equation is,
$y^{2} + 3 y - 18 = 0$
$y^{2} + 6 y - 3 y - 18 = 0$
$(y + 6) (y - 3) = 0$
$∴ y = - 6, 3$
$∴$ roots of the equation are $- 6, 3$

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