Question

The discriminate of kx×x -3√2x + 4√2 = 0 is 14 .Find the value of K.

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Answer 1

Answer:

2x^2–(10+√14).x+5√14=0

Here. a= 2. , b= -(10+√14). , c= 5√14 .

x=[-b+/-√{b^2-4a.c}]/2.a

or. x=[(10+√14)+/-√{100+14+20√14–40√14}]/2.2

or. x=[(10+√14)+/-√(10-√14)^2]/4.

or. x=[(10+√14)+/-(10-√14)]/4

or. x=20/4. , (2√14)/4.

or. x= 5. , √14/2. Answer.

Answer 2

Answer:

2x^2–(10+√14).x+5√14=0

Here. a= 2. , b= -(10+√14). , c= 5√14 .

x=[-b+/-√{b^2-4a.c}]/2.a

or. x=[(10+√14)+/-√{100+14+20√14–40√14}]/2.2

or. x=[(10+√14)+/-√(10-√14)^2]/4.

or. x=[(10+√14)+/-(10-√14)]/4

or. x=20/4. , (2√14)/4.

or. x= 5. , √14/2. Answer.

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