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One of the roots of the equation x2 plus 3x - 18 equals 0 is 3 what is the other root?
Wiki User
∙ 14y ago
x2 + 3x - 18 = 0
(x - 3)(x + 6) = 0
x = 3 or -6
Wiki User
∙ 14y ago
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In the quadratic equation ax2 plus bx plus c 0 if b2 - 4ac?
If you mean b^2 -4ac then it is the discriminant of a quadratic equation. If the discriminant equals 0 then the equation has 2 equal roots. If the discriminant is greater than 0 then the equation has 2 different roots. If the discriminant is less than 0 then it has no real roots.
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In the quadratic equation ax2 plus bx plus c 0 if b2 - 4ac?
If you mean b^2 -4ac then it is the discriminant of a quadratic equation. If the discriminant equals 0 then the equation has 2 equal roots. If the discriminant is greater than 0 then the equation has 2 different roots. If the discriminant is less than 0 then it has no real roots.
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The discriminant is -27 and so there are no real roots.
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You should be able to look at this equation, or use the discriminant and know that there are no real roots.
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It is a quadratic equation in X, with two real roots.
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6.50 to the nearest hundredth (4.685 & 1.815)
