Q: What is x in the equation -3x squared minus 5x plus 12 equals 0?

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The centre is (-5, 3)

3x2 + 2x - 8 = 0 is a quadratic equation.

It is a quadratic equation in X, with two real roots.

no

It is a quadratic equation and its solutions are: x = 4 or x = -9

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{-1,7}

The centre is (-5, 3)

x equals negative b plus or minus the square root of b squared minus 4bc over 2a

no

It is a quadratic equation in X, with two real roots.

3x2 + 2x - 8 = 0 is a quadratic equation.

there has to be more to the question is there a way you can tell what the equation equals

It is a quadratic equation and its solutions are: x = 4 or x = -9

It can be solved by using the quadratic equation formula.

2

Using the discriminant for a quadratic equation the value of k works out as plus or minus 12.

It is a quadratic equation with one unknown variable, x which has no real roots.