
IN FRACTRISATION METHOD
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Hello !!
Find the coeficients of the equation.
A = 1 ; B = 5 ; C = -300
Find the discriminant.
D = b^2 - 4ac
D = 5^2 - 4 × 1 × (-300)
D = 25 + 1200
D = 1225
Now, you find the roots.
x = (-b ± √D)/(2a)
x = (-5 ± √1225)/(2 × 1)
x = (-5 ± 35)/2
x' = (-5 + 35)/2
x' = 30/2
x' = 15
x'' = (-5 - 35)/2
x'' = -40/2
x'' = -20
Final result : the solution for quadratic equation is 15 and -20.
I hope I have collaborated !
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