Question

x2–39x–126=0 quadratic equation

X=–b±√b²–4ac/2a formula

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Answer 1

Step-by-step explanation:

x²-39x+126=0

a=1

b=-39

c=126

x=[-b + √(b²-4ac)]/2a

b²-4ac = (-39)²-4(1)(126)

= 1521-504

= 1017

x= [-(-39)+ √1017]/2(1)

x= (39+√1017)/2 ; (39-√1017)/2

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