Question

What are the roots of x in - 10x2 + 12x - 9 = 0?​

Answer 1

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Answer 2

Thus, The two roots of the given quadratic equation are : x = 0.5225 or x = -1.7225

Explanation:

The quadratic equation is given to be :

10x² + 12x - 9 = 0

A = 10 , B = 12 , C = 9

Now, using the discriminant rule :

`x=(-B\pm√(B^2-4AC))/(2A)\\\\\implies x=(-12\pm√(144+360))/(20)\\\\ \implies x =(-12\pm 22.45)/(20)`

So, x = 0.5225 or x = -1.7225

Thus, The two roots of the given quadratic equation are : x = 0.5225 or x = -1.7225