Question

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

Answer 1

Answer:

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

Step-by-step explanation:

The quadratic equation is given to be :

10x² + 12x - 9 = 0

A = 10 , B = 12 , C = 9

Now, using the discriminant rule :

$x=\frac{-B\pm\sqrt{B^2-4AC}}{2A}\\\\\implies x=\frac{-12\pm\sqrt{144+360}}{20}\\\\ \implies x =\frac{-12\pm 22.45}{20}$

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

Answer 2

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