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Step-by-step explanation:
Using the quadric formula:
Where,
a = 5 b = -2 c = -5
Hence,
Consider the given quadratic equation that we have :
Multiplying both sides by -1 will yield ;
Write the above quadratic equation in the form of standard quadratic equation ax² + bx + c = 0 ,
Now , comparing this with the standard form of quadratic equation we will get a = 5 , b = -2 , c = -5 . So now , Discriminant (D) = (-2)² - 4 × 5 × -5 = 4 + 100 = 104
Now , by the quadratic formula ;
For any quadratic equation of the form ax² + bx + c , the Discriminant (D) is given by D = b² - 4ac , and the root 
of the quadratic equation is given by the quadratic formula as
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